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Peer reviewed
Direct linkErford, Bradley T.; Johnson, Erin; Bardoshi, Gerta – Measurement and Evaluation in Counseling and Development, 2016
This meta-analysis reviewed 144 studies from 1996 to 2013 using the Beck Depression Inventory-Second Edition. Internal consistency was 0.89 and test-retest reliability 0.75. Convergent comparisons were robust across 43 depression instruments. Structural validity supported both one- and two-factor solutions and diagnostic accuracy varied according…
Descriptors: Measures (Individuals), Depression (Psychology), Meta Analysis, Reliability
Download full textBoston, Carol – 2002
This Digest provides a review and applications of the concepts of normal distribution, standard deviation, effect size, and translation of effect size into percentile gain, the foundations for the understanding of meta analytic results. Meta analysis is a statistical technique that enables the results of a number of studies to be combined to…
Descriptors: Comparative Analysis, Effect Size, Meta Analysis, Statistical Distributions
