07_Psychotherapy Research Flashcards
General Outcome Studies:
Eysenck 1952: Overview
1st efficacy studies of psychotherapy
Effects are “small or nonexistent”
Positive effects are result of spontaneous remission
General Outcome Studies: Eysenck
Percent Improvement of Comparative Therapies
Control Group: 72% improvement within 2 years
Eclectic: 66%
Psychoanalytic: 44%
General Outcome Studies:
Meta-Analysis
Combined results of multiple studies to calculate an effect size
Smith, Glass, Miller (1980)
Meta-Analysis Results and Conclusion
Effect size = .85
Psychotherapy equal or exceed medical/educational interventions
“Efficacious in practical as well as statistical terms”
Meta-Analysis:
Therapy Efficacy
No one type of therapy to be consistently superior
Positive change due to common factors
*Not any unique or specific techniques
General Outcome Studies:
Four Common Factors
Catharsis
Positive relationship with the therapist
Behavioral regulation
Cognitive learning and mastery
Effects of Treatment Length: Howard (1996)
Leveling off of outcome based on treatment length
75% at 26 sessions
85% at 52 sessions
Effects of Treatment Length: Howard (1996)
Phase Model: Three Stages
Remoralization
Remediation
Rehabilitation
Effects of Treatment Length: Howard (1996)
Phase Model: Remoralization
Hopelessness and desperation respond quickly to therapy
Remoralization occurs within the first few sessions
Effects of Treatment Length: Howard (1996)
Phase Model: Remediation
Focus on presenting symptoms
Symptom relief usually requires ~ 16 sessions
Effects of Treatment Length: Howard (1996)
Phase Model: Rehabilitation
Behavior change and skill building
Number of sessions dependent on symptomatology and severity
Efficacy Studies
Clinical trials
Determines whether or not treatment has an effect
Effectiveness Studies
Correlational or quasi-experimental
Determines clinical utility
i.e. generalizability, feasibility, cost effectiveness
Seligman’s critique of Efficacy studies
Not applicable for empirical validation of psychotherapy
Clinical trials omit too many elements of what is actually done in the field
Sue (1991): Psychotherapy with Diverse Populations
Racial/Ethnic Groups with best outcomes:
High to Low
Hispanic American
Anglo
Asian
African-American
Utilization of Mental Health Services:
African-Americans
Lower rates of general MH services than whites
Higher rates in ER and psychiatric inpatient settings
Utilization of Mental Health Services:
Asian Americans
Underrepresented in both outpatient and inpatient settings
Racial/ethnic group who receive most treatment for:
Depression
Whites
Followed by African-Americans and Hispanics
Racial/ethnic group who receive most treatment for:
Illicit drug use
African-Americans
Premature Termination Rates:
Racial/ethnic groups % dropout after first session
50%: Minority groups
30%: Whites
Premature Termination Rates:
Community Mental Health Setting
Racial/ethnic groups dropout High to Low
African-Americans
White & Hispanics
Asian-Americans