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INTRODUCTION
The evidence based movement and its
proponents at the practice and health care system levels have begun to
influence the mental health field in response to demands for accountability
and to address the well-documented disparity between scientific evidence and
actual practice. Society, the legal system, managed health care
organization, insurances, and government regulators have mandated that
clients should have access to the most effective treatments for their
specific conditions. Efforts to overview the evidence in mental health using
standardized and transparent criteria have been done by American
Psychological Association (Chambless and Ollendick,
2001), the Cochrane Collaborative, the British Medical Journal Publishing
Group (2002), the Texas Medication Algorithm Project (Miller et. al., 1999)
and the National Evidence – based Practices Project (Drake et. al., 2001),
which have assembled teams to review and synthesize the evidence regarding
treatment of severe mental illness.
EVIDENCE BASED CARE: IMPORTANT
CONCEPTS
a) Evidence:
Scientific information regarding the effects of a well-defined treatment
compared with a comparison group of no treatment, a placebo or, an
alternative treatment. Scientific ‘evidence’ refers to data that – (i) Are conducted systematically under specific conditions, which
distinguish between treatments and their comparisons,
(ii) Control for differences between service recipients,
(iii) Control for the bias that recipients may bring to the observation of
their conditions, and
(iv) Control for the bias that practitioners or researchers may bring to the
observation of recipients (Weisz et al., 2004).
Hierarchy of Evidence:
The gold standard for scientific evidence is the systematic review of
several double blind randomized controlled trials (RCTs). Beneath the randomized controlled
trials, are quasi-experimental studies, open clinical trials, systematic
observations and unsystematic observations. In addition to the strength of
study designs, the hierarchy of evidence should involve the number of
studies, the magnitude of treatment effects, the relevance of outcomes, the
generalisability of studies and other factors (Abelson, 1995).
Levels of Evidence of Therapeutic
effectiveness:
Level 1: Either a systematic review of comparable randomized controlled
trials or, an individual RCT with a narrow confidence level.
Level 2: Either a systematic review of comparable cohort studies or an
individual cohort study.
Level 3: A systematic review of comparable case-control studies or an
individual case control study.
Level 4: A reported case series.
Level 5: Expert opinion based on consensus or inference from ‘1st principle’
in the absence of formal critical appraisal (Ball et al, 1998).
b) Evidence Based Medicine:
Identification (reliably and efficiently) critical appraisal (in terms of
validity and usefulness) and implementation of the best available evidence
(from research & experience) for a particular intervention or maneuver in a
given clinical situation (Sackett et al, 1997).
Principles of EBM: The fundamental
goal of EBM is achieved through adherence to four fundamental principles in
the process of decision making as to which is the best possible health care
decision based on the available evidence (Guyatt and Rennie, 2002 )
1. The best available scientific evidence should be provided to patients for
their consideration when decisions regarding health care have to be taken.
2. The evidence should be adjusted for the individual patient and local
circumstances.
3. Patients have a right to self-determination based on
(a) Accurate information regarding disease, interventions, adverse effects
and outcomes
(1) (b) And their own values and preferences for interventions and outcomes.
4. Physicians and other practitioners must have the appropriate clinical
expertise – the technical mastery as well as the ability to work
collaboratively with patients in order to practice EBM. This involves a
shared decision making process by which the practitioner and patient agree
on a treatment plan.
Steps in finding and evaluating
relevant evidence: Practitioners of EBM must know the current evidence for
the effectiveness of various interventions or know how to find and evaluate
the evidence.
a) Formulating the question regarding treatment option: Clear answers
require clear questions. For example, consider a patient suffering from a
chronic mild depressive disorder. The clinician diagnoses dysthymic disorder
but may be uncertain whether recommending Cognitive Behavior Therapy over
non-specific support for a few sessions. The questions are,
(i) In patient with dysthymia (the problem)
(ii) How effective is CBT (the intervention)
(iii) Compared with alternative treatment (the comparison intervention)
(iv) In alleviating depressive symptom and improving psychosocial
functioning (the outcome)?
b) Finding the evidence: Common approaches to gathering evidence include
clinical experience, asking colleagues, reading standard textbooks,
attending continuing education conferences and using computerized searches.
Up to date, Dyna Med, eMedicine, Clinical Evidence and the National
Guideline Clearinghouse are on line sources of clinical information.
c) Using the Evidence: Translating research finding into clinically usable
information is one of the most challenging areas of EBM. It involves
summarizing the research finding in ways which contain the maximum amount of
information and which are meaningful to clinician. Most commentators favour
measures of effect such as absolute risk reduction or the number needed to
treat which are most intuitive and more clinically useful (Laupacis et.al,
1988)
c) Evidence Based Practice: Evidence
based practice (EBP) is a broadening to healthcare in general, of the
principles of EBM. Evidence based practice is the integration of best
research evidence with clinical expertise and patient values. EBP’s are
interventions that are judged to be effective for groups of patients with a
specific condition or outcome goal. The criteria typically include
standardization of the intervention, objective outcome measures, multiple
controlled studies and research for more than one group
Aims of EBP’s:
The underlying philosophy of EBP can be summed up diagrammatically as a
transition between two states of affairs:

In the first situation column ‘A’, the majority of available interventions
are taken to be ‘Harmless’, with small but significant minorities being
either distinctly beneficial or clearly harmful. The task of EBP is to
increase the use of the former and to eliminate the latter as represented in
column ‘B’. To do this, not only should there be clear-cut standards as to
what kind of research findings would be counted as clinical evidence, but a
mechanism for translating those into clear, widely disseminated
recommendations that fulfill the needs of any clinician and patient who have
specific questions (Mace & Moorey, 2001).
An important distinction between EBP and EBM is that a practitioner of EBM
learns to formulate a clinical question based on a particular patient,
conduct a search for patient information, appraise the literature regarding
quality and formulate an answer regarding the specific clinical question. (Sackett
et al., 2000). By contrast, a practitioner of EBP learns to provide
treatments that have been identified by experts as empirically based (Drake
et al, 2004).
(d) Randomized Control Trials: Here
the impact of treatment is studied following attempts to eliminate bias by
randomly allocating alternative treatments to study patients according to a
protocol over which an experimenter has no personal control. Double blind
randomized trials are a subset of RCTs that keep the clinicians, patients
and raters of outcome in the dark about whether a particular person is a
control subject or, has been given the experimental treatment.
(e) Cohort or longitudinal study: A
study in which subjects are prospectively followed over time without any
specific intervention.
(f) Case control study: A study in
which a group of patients and a group of control subjects are identified in
the present and information about them is pursued retrospectively or,
backward in time.
(g) Certain useful term to know while
evaluating the articles:
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Experimental treatment
X |
Control treatment
Y |
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Positive outcome |
a |
b |
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Negative outcome |
c |
d |
Control event rate (CER) = b/b+d
ratio of out come of control group.
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Experimental event rate (EER) = a/a+c
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Absolute risk reduction (ARR) = EER-CER. This tells us the difference in
the number of patients with specific outcome of every 100 patients treated
in either way
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Relative risk (RR) = EER/CER. – ratio of the proportions with a positive
outcome on treatments X &Y.
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Relative risk reduction (RRR) = 1-RR or ARR/CER. Probability of an event
in the active treatment group divided by the probability of an event in the
control group.
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Odds ratio (OR) = (a/c)/(b/d) = ad/bc. Odds of an event in the active
treatment group divided by odds of an event in the control group.
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Number needed to treat (NNT) = Reciprocal of the ARR. It is the estimate
of the number of patients to be treated with the intervention of interest,
compared with alternative, in order to achieve one good outcome or avoid one
harmful outcome.
EVOLUTION OF EVIDENCE BASED
PSYCHOTHERAPY
Psychotherapy research developed later and more slowly than psychotherapy
practice, with some of the earliest work published near the mid point of the
20th century. The Task Force on Promotion and Dissemination of Psychological
Procedures (referred to as Task Force) of Division 12 (Clinical Psychology)
of the American Psychological Association (APA) became interested in
promoting the awareness and use of empirically supported treatments (EST’s)
as a part of the movement of EBM that arose in the UK (Sackett et al, 1997).
Appointed in 1993, the Task Force was charged with considering issues
related to dissemination of psychological treatment of known efficacy. After
acceptance by the division 12 Board of Directors in October of the same
year, the report was circulated to a number of groups for discussion like
the APA Board of Educational Affairs, Scientific Affairs, Professional
Affairs etc. The final report (1st of 3) was issued in 1995 (Task Force,
1995; Chambless et al, 1996, 1998) in which a number of psychological
treatments were identified as empirically validated treatments. In this
report, the Task Force published criteria for selection of EST’s and a very
preliminary list of 25 treatments that met those criteria. Because the 1st
Task Force focused largely on EST’s, Division 12 appointed a 2nd Task Force
with an emphasis on EST’s and prevention programs for children, the Task
Force on Effective Psychosocial Interventions: A Lifespan Perspective. In
subsequent reports, the Task Force expanded the list of EST’s (Chambless et
al, 1996, 1998) and it included a list of 71 treatments as well as
information concerning training opportunities and materials for therapists.
(Sanderson and Woody, 1995; Woody and Sanderson, 1998).
Work group Criteria for
Identification of Empirically Supported Therapies:
Well-established Treatments
I. At least two good between-group
design experiments must demonstrate efficacy in one or more of the following
ways:
A. Superiority to pill or psychotherapy placebo, or to other treatment
B. Equivalence to already established treatment with adequate sample sizes.
OR,
II. A large series of single- case
design experiments must demonstrate efficacy with A. Use of good
experimental design. B. Comparison of intervention to another treatment.
III. Experiments must be conducted
with treatment manuals or equivalent clear description of treatment.
IV. Characteristics of samples must be
specified
V. Effects must be demonstrated by at
least two different investigators or teams.
Probably efficacious treatments
I. Two experiments must show that the
treatment is superior to waiting – list control group; OR,
II. One or more experiments must meet
well established criteria I A or I B, III and IV above but V is not met; OR,
III. A small series of single – case
design experiments must meet well – established treatment criteria.
Experimental Treatments Treatment not yet tested in trials meeting Task
Force criteria for methodology (Chambless et al, 1998).
EMPIRICALLY SUPPORTED
PSYCHOLOGICAL INTERVENTIONS
The following coding system is used to
indicate the nature of the supporting evidence in the summary
recommendations and references:
[A] Randomized clinical trial: A study of an
intervention in which subjects are prospectively followed over time; there
are treatment and control groups; subjects are randomly assigned to the two
groups; both the subjects and the investigators are blind to the
assignments.
[B] Clinical trial: A prospective study in which an
intervention is made and the results of that intervention are tracked
longitudinally; study does not meet standards for a randomized clinical
trial.
[C] Cohort or longitudinal study: A study in which subjects are
prospectively followed over time without any specific intervention.
[D]
Case-control study: A study in which a group of patients and a group of
control subjects are identified in the present and information about them is
pursued retrospectively or backward in time.
[E] Review with secondary data
analysis: A structured analytic review of existing data (e.g., a
meta-analysis or a decision analysis).
[F] Review: A qualitative review and
discussion of previously published literature without a quantitative
synthesis of the data.
[G] Other: Textbooks, expert opinion, case reports,
and other reports not included above.
Behaviour Therapy (BT)
Research on behavioural psychotherapy has developed from several strands and
it has been found to be effective in the treatment and management of a
variety of problems.
Depression: BT of major depressive disorder includes activity scheduling,
self control therapy, social skills training and problem solving. Two meta
analyses have concluded that BT is superior to wait listing. (Depression
Guideline Panel, 1993 [E]; Jarrett and Rush, 1994 [F]). Results of
individual clinical trials have suggested that BT may be superior in
efficacy to brief dynamic psychotherapy (Steuer, 1984 [B]) and generally
comparable in efficacy to cognitive therapy (Jacobson et al, 1991) or
pharmacotherapy (Miller et al, 1989).
Anxiety Disorders: Behavioural and cognitive psychotherapies are the most
widely studied psychological interventions for anxiety disorders (Barlow,
2002). The most widely employed behavioural technique is systematic exposure
to situations and stimuli that evoke pathological fear.
a) Panic Disorder: Behavioural treatments (e.g. exposure in vivo) have been
shown effective when compared to other psychological interventions (Deacon
and Abramowitz, 2004).
b) Phobia: Meta analytic findings on psychological treatments for social
phobia provide consistent support to the fact that exposure therapy done
appear to be effective and results are equivocal about whether adding
cognitive restructuring confers additional benefits. Mean effect sizes for
cognitive approaches tend to be lower than those for exposure alone, which
suggest the superiority of behaviour therapy. (Deacon and Abramowitz, 2004).
In the specific phobia, participant modeling has been found to be more
effective than non-directive supportive therapy as well as systematic
desensitization and filmed modeling (Ollendick & King, 1998; 2000).
c) Obsessive – Compulsive Disorders (OCD): Research on treatment of adult
OCD has demonstrated a high degree of specificity, in that different forms
of behaviour therapy have significantly different effects. Studies conducted
by Fals- Stewart et al. (1993[A]) and Lindsey et al (1997 [A]) compared
Exposure and Response Prevention (ERP) to Progressive Muscle Relaxation
either alone or as part of anxiety management training and found that ERP
was significantly superior to the alterative treatment
Cognitive Therapy (CT)
CT has been found to be effective in treating different disorders that cause
emotional maladjustment.
Depression: CT has been effective in treating various types of depression
such as unipolar depression, major depression, minor depression, acute
depression and endogenous depression (Gitlin, 1995; Simons and Thase, 1992).
CT has been found to be more effective than behavioural and interpersonal
therapies (Shapiro et al, 1994). Blatt et al. (2000) analyzed data from the
National Institute Of Mental Health Treatment for Depression Collaborative
Research Program, (NIMH-TDCRP) in which two EST’s – cognitive and
interpersonal therapies were compared to treatments with an antidepressant
plus clinical management and with a placebo plus clinical management and it
was found that the both psychotherapy groups rated their life adjustment
significantly more positively than the other groups.
Anxiety Disorders: Arntz and Hout (1996) found that among patients with
panic disorder and a secondary diagnosis of social phobia or mood disorder,
CT produced superior outcomes in comparison to applied relaxation by
reducing the frequency of panic attacks.
In the most recent meta analytic review of social phobia treatment, Fedoroff
and Taylor (2001) computed effect sizes for seven trials of exposure
therapy, seven of CT and 21 of combined exposure plus CT. CT alone and CT
plus exposure were considered highly effective and not different from one
another.
Generalised Anxiety Disorder (GAD): The most widely studied treatment for
GAD has been Beck and Emery’s (1985) CT model. Chambless and Gillis (1993)
reviewed studies evaluating the efficacy of this model and found that CT in
combination with behavioural techniques was more effective than the placebo.
Schizophrenia: The efficacy of remediation of cognitive deficits like
attention and memory problems, by cognitive techniques has been demonstrated
in experimental trials (Penn and Mueser, 1996 [F, G]; Corrigen & Yudofsky,
1994[B]) but extended studies have not been carried out.
Several controlled and uncontrolled studies have extended Beck’s CT to
schizophrenia with encouraging clinical results, including reduction or
removal of delusions and hallucinations. (Tarrier et al, 1993 [B]; Kingdon
and Turkingdon, 1994 [B]).
Cognitive Behaviour Therapy
CBT represents an integration of schools of psychotherapy, most notably BT
and CT. CBT maintains an empiricist tradition and strives for clinical
sensitivity with empiric soundness.
Depression: CBT has been shown to be effective in treating patients with
dysthymia and chronic major depressive disorder, although responses have
been somewhat smaller than when these modalities are used to treat patients
with major depressive disorder (Keller et al, 1996[F]). In two decades since
it was first evaluated as a treatment for major depressive disorder, CBT has
been extensively studied in over 80 controlled trials and the effect sizes
for CBT compared to no treatment or minimal treatment have been fairly
robust (Glouguen et al, 1998 [E]; Blackburn & Moore, 1997 [B]). Some meta
analyses have concluded that effect sizes for CBT are larger than
pharmacotherapy (Gloaguen et al, 1998 [E]; De Rubeis et al, 1999 [E])
whereas others suggest that they are equally effective (Clark et al, 1994
[B]).
In the NIMH – TDCR study, CBT was observed to be less effective than
imipramine plus clinical management among individuals with severe depression
and CBT was also found to be less effective than interpersonal therapy
(IPT).
Anxiety Disorders: Psychotherapies involving cognitive and behavioural
procedures have been established as EST’s for anxiety disorders (Chambless & Ollendick, 2001).
GAD: Borkovec and Costello (1993) found that
CBT was significantly superior to non-directive therapy at post-test and
one-year follow-up. Overall, meta-analytic literature most strongly support
the effectiveness of CBT for GAD (Deacon and Abramowitz, 2004).
Panic Disorder: Treatment using CBT have demonstrated efficacy in the
treatment of panic disorder with or without agoraphobia (Gould et al, 1995)
Seven meta analytic reviews of panic disorder studies have appeared in the
past 10 years, and all of them support the efficacy of CBT (Deacon and
Abramowitz, 2004).
Obsessive Compulsive Disorder: Numerous studies conducted in various centers
around the world have established Exposure & Response Prevention (ERP) as
highly efficacious therapy for OCD (Franklin et al, 2000). Fals – Stewart,
Marks and Schafer (1993) found that both a group and individual version of
ERP outperformed a relaxation training control. Abramowitz et al (2002)
conducted an updated meta analytic study that focus exclusively cognitive
behavioural therapy for OCD and found that ERP was a stronger treatment than
CT in comparison to no treatment.
Substance Use Disorders: There is abundant evidence that CBT aimed at
improving self-control and social skills consistently lead to reduced
drinking (Holder et al, 1991[E]). Motivational enhancement therapy, based on
cognitive behavioural, client centered systems and social – psychological
persuasion techniques, was shown to have positive effects in eight of nine
controlled studies (Miller et al, 1993 [B]).
Schizophrenia: Controlled studies of CBT have reported benefits in reducing
positive symptom severity in schizophrenia (Dickerson, 2000). In a review of
three studies, Rector and Beck (2001) reported a large aggregated effect
size favoring CBT over supportive therapy for reducing negative symptoms in
schizophrenia patients.
Interpersonal Therapy
The breadth of its clinical application has grown since its early use, as
has the empirical evidence supporting the efficacy of IPT (Weissman et al,
2000; Stuart and Robertson, 2003). IPT has been found to be effective in
depressed patients from adolescence (Mufson, et al, 1999) to late life
(Reynolds, et al, 1992), postpartum depression (O’Hara et al, 2000), medical
comorbidities (Stuart and Cole, 1996) eating disorders (Wilfley et al, 2002,
Fairburn et al, 1991), social anxiety and bipolar disorders (Lipsitz, 1999).
There is some evidence that IPT is superior to CBT in individuals with
severe depression (Klein and Ross, 1993).
Group Therapy
After a decade of benign neglect in some quarters and unsophisticated stabs
at empirical inquiries in others, there has been a gratifying spurt in group
therapy research in recent years. Some initial findings in the 1970’s showed
that the then ‘new’ group formats such as Encounter and Self Help groups
produced beneficial results (Lieberman and Borman, 1979). These were
followed by comprehensive metaanalytic studies by Smith et al. (1980), which
concluded that group therapy was as effective as individual treatment in the
alleviation of psychological problems. In recent times, short term
problem-focused approaches is a renewed interest in research with the
purpose of validating earlier theoretical assumptions, and for moving toward
developing cost-effective, efficient techniques.
Depression: Specific types of psychotherapy for which there are some data to
support that they may be effective in the treatment of depression and when
administered in a group format include cognitive behaviour therapy (Bright
et al, 1999 [A]; Neimeyer et al, 1995 [C]) and interpersonal therapy.
(Mackenzie et al., 1999 and Yalom, 1995) Bright et al. (1999 [A]) found that
a mutual support group and cognitive behavioural therapy in a group format
were equally effective in reducing depressive symptoms among depressed
outpatients and a higher proportion of depressed outpatients had remitted
following treatment in groups led by professionals than in groups led by
non-professionals.
Panic Disorder: Reports in the literature of group therapy in the treatment
of panic disorder have consisted primarily of cognitive behaviors
approaches. Telch et al. (1999[A]) found a greater proportion of panic free
subjects among those who had been given group CBT than among delayed
treatment control subjects and the improvement was comparable to
individually administered CBT and pharmacological management. Eight weeks
trial of mindfulness meditation (an additional treatment proposed for panic
disorder by Kabat et al., 1992) in group format showed significant reduction
in rating of anxiety symptoms and panic attacks (Miller et al. 1995).
Substance use Disorders:
The types of group therapy used with this population include modified
psychodynamic, interpersonal, interactive, rational emotive, Gestalt and
psychodrama.
Alcohol Use Disorder: Outcome studies have typically supported the efficacy
of behavioural and cognitive behavioural group treatments, including group
marital therapy. Patients with less sociopathy and those with neurological
impairment fare better in interactional therapy, while those with higher
levels of sociopathy and psychopathology fare better in cognitive
behavioural groups (Cooney et. al., 1991 [B]).
Opiate Use Disorders: Psychodynamically oriented group therapy, modified for
substance dependant patients, appears to be effective in promoting
abstinence when combined with behavioural monitoring and individual
supportive psychotherapy (Khantzian, 1990 [F]). McAuliffe (1990, [B])
reported that group relapse prevention based on a conditioning model of
addiction, when combined with self help groups, was more effective than no
treatment in reducing opioid use, unemployment, and criminal activities in
recently detoxified patients.
Schizophrenia: The evidence for the efficacy of group therapy in
schizophrenia is not strong (Scott et al., 1995 [G]; Schooler et al., 1993
[F]). A number of well-controlled studies involving stable outpatients
indicate that there is very modest evidence that group therapy can be
effective in improving social adjustment (Malm, 1990 [F]) and coping skills
(Kanas, 1996 [F]). Higher functioning outpatients may benefit from
interaction oriented group therapy while poorly functioning patients who may
be over stimulated may benefit more from group approaches that attempt to
reprogram cognitive and behavioural deficits (American Psychiatric
Association, 1989).
Borderline Personality Disorder: The limited literature on group therapy for
patients with borderline personality disorder indicates that group treatment
is not harmful and may be helpful, but it does not provide evidence of any
clear advantage over individual psychotherapy. In general, group therapy is
usually used in combination with individual therapy and other types of
treatment, reflecting clinical wisdom that the combination is more effective
than group therapy alone. Studies of combined individual dynamic therapy
plus group therapy suggest that the non-specified components of combined
intervention may have the greatest therapeutic power (McGlashan, 1986[C]).
Family Therapy (FT)
An evidence-based approach in family
therapy emphasizes the value of family participation in treatment and
stresses the importance of working together in a collaborative endeavor. The
main goal of family interventions referred to, as psychoeducation is to
decrease the risk of patient’s relapse. More recent research emphasized
other goals such as improving patient and family functioning, and decreasing
family burden.
Depression: Techniques for using family approaches for the
treatment of major depressive disorder include behavioural approaches (Beach
et al., 1990 [G]) and a psycho-educational approach. One adequately sized
trial of behavioural family treatment has been completed and investigation
have found that behavioural family management (in concert with adequate
pharmacotherapy) resulted in a substantial decrease in depressive relapse
rates when compared with a usual control condition (Miklowitz et al., 2000
[A]).
Anxiety Disorders: There is some evidence that patients of panic
disorder who experience mental distress may benefit from a family
intervention. (Jacobson et al., 1989 [F]).
Substance use Disorders:
Controlled studies have shown family therapy to be effective for
adolescents, patients on methadone maintenance and patients with alcohol
dependence (American Psychiatric Association, 2002).
Schizophrenia: While
the use of different variants of family management and the different types
of control treatments (like individual supportive therapy, medication alone
etc) makes it difficult to compare the results of more than 10 controlled
studies, relapse rates have typically been halved (Penn et al., 1996 [F, F];
McFarlane et al., 1992 [f]; Randolph et al., 1994 [A]). McFarlane (1994[F])
found slightly better protection against relapse from the multiple family
groups in a controlled study in comparison to individual families.
Marital Therapy
Two generations of outcome research demonstrate the potential efficacy of
marital therapy in the treatment of depression (Beach et al, 1998).
Therapies that have been found to be efficacious include Cognitively
Oriented Marital Therapy (COMT), Emotionally Focused Marital Therapy (EFMT)
and Insight Oriented Marital Therapy (IOMT) (Wesley and Waring, 1996).
Rational Emotive Behaviour Therapy (REBT)
Starting in the 1960s and continuing into the 1980s, more than 1000 outcome
studies have been done on REBT and on closely related forms of CBT (Hajzler
and Bernard, 1991; Hollon and Beck, 1994; Lyons and Woods, 1991). The great
majority of these controlled studies have shown that, when compared to a
control group, clients treated with REBT fare significantly better than
those who are not so treated. In addition to empirical studies that tend to
back the main therapeutic hypothesis of REBT, literally hundreds of other
controlled experiments have been published that tend to indicate that many
of the main theoretical hypothesis of REBT now have considerable
experimental backing (Dryden and Ellis, 2001). REBT has had many
applications to various aspects of psychotherapy, including child and
adolescent therapy (Bernard & Joyce, 1984) marriage and family therapy,
(Ellis, 1991, 1993, Ellis and Dryden, 1997) sex and relationship therapy
(Ellis and Lange, 1994, Ellis and Tafrate, 1997; Wolfe, 1992) brief therapy
(Dryden, 1996; Ellis, 1996a, 1996b), treatment of personality disorders
(Ellis, 1994a, 1994c), hypnosis (Ellis, 1993e, 1996e), group therapy (Ellis,
1997c), treatment of eating disorders (Ellis, Abrams & Dengelegi, 1992)
addiction treatment (Ellis and Di Giuseppe, 1994; Ellis and Velten, 1992)
geriatric therapy (Ellis and Velten, 1998), and treatment of OCD (Ellis,
1997 ).
Hypnosis
A review of controlled studies on the
efficacy of clinical hypnosis with children records promising findings,
particularly for reduction of acute pain, chemotherapy related distress and
enuresis (Millings and Constantino,2002). However, no child hypnosis
intervention currently qualifies as “efficacious” according to criteria for
EST. A 26 critical trial review (Primavera and Kaiser, 1992) pertaining to
non-pharmacological treatment of headache suggest that there is no
significant difference in the efficacy of hypnosis, biofeedback and
relaxation training.
Psychodynamic Psychotherapy (PDP)
Psychoanalytic or psychodynamic psychotherapy encompasses a number of
psychotherapeutic interventions that may be brief or long term in duration. Rustin (1997) asserts that psychoanalysis has always had its own distinctive
research methods and that these have been productive over 100 years in
enlarging the powers of the psychoanalytic paradigm to understand new areas
of mental life. These have included new categories of patients (for e.g.,
the development of psycho-analysis of children) and new categories of
difficulty and disorder (psychosis, autism, borderline disorder etc).
Psychoanalytic technique is as far as possible controlled and monitored by
individual analysts and by analysts working informally together as research
group.
Depression: In one of the most comprehensive and accomplished comparative
psychotherapy outcome reviews, Roth and Fonagy (1996) found that
psychodynamic psychotherapies achieved their minimal criteria for full
empirical validation only in the treatment of depression for the elderly and
failed to do so for the treatment of any other child or adult disorder.
Results of two metaanalyses suggest that brief psychodynamic psychotherapy
for the treatment of major depressive disorder is more effective than a
waiting list control condition but probably less effective than other forms
of psychotherapy (Depression Guideline Panel, 1993; [E], Jarrett and Rush,
1999 [F]).
Anxiety Disorders: Studies conducted by Bash (1995 [G]) reveal that some
case reports of brief dynamic psychotherapies that took no longer than CBT
to achieve reasonable treatment goals for patients with panic disorder.
Substance Use Disorders: Holder et al (1991 [E]) concluded that there was
little empirical evidence from controlled studies that either insight
oriented psychotherapy or counseling is an effective treatment for
alcoholism. Psychodynamic supportive-expressive psychotherapy (SE),
developed by Luborsky et al (1984), has been found to be an effective
intervention for opiate use disorders and Woody et al (1983 [B]; 1995 [B])
found that SE was more effective than drug counseling alone for patients
with high levels of other psychiatric symptoms like depression .
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