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Psychometric Properties of the BDI: A Meta-analysis. Beck et al. (1988) conducted a meta-analysis of studies involving the Beck Depression Inventory (BDI) over 25-years (from 1961 to 1986) to determine the psychometric properties of the inventory.

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psychometric properties of the bdi a meta analysis
Psychometric Properties of the BDI: A Meta-analysis

Beck et al. (1988) conducted a meta-analysis of studies involving the Beck Depression Inventory (BDI) over 25-years (from 1961 to 1986) to determine the psychometric properties of the inventory.

The meta-analysis calculated reliability and validity coefficients for psychiatric and non-psychiatric populations.

Since the sample sizes varied between studies, a formula was used which gave weight according to the sample size.

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psychometric properties of the bdi a meta analysis2
Psychometric Properties of the BDI: A Meta-analysis
  • Tests of reliability included:
  • Internal Consistency: Calculation of reliability estimates such as Spearman-Brown and Kuder-Richardson.
  • Stability: The BDI was administered to the same participants on two occasions, where the time interval ranged from hours to weeks. These pre- and posttest scores were correlated to achieve a stability estimate.

© POSbase 2005

psychometric properties of the bdi a meta analysis3
Psychometric Properties of the BDI: A Meta-analysis

To calculate an estimate of concurrent validity, the BDI and another measure of depression were administered to the same participants, and the two sets of scores were correlated. The other measures of depression included:

  • Clinical ratings:
  • Hamilton Psychiatric Rating Scale for Depression (HRSD; Hamilton, 1960)

© POSbase 2005

psychometric properties of the bdi a meta analysis5
Psychometric Properties of the BDI: A Meta-analysis

From these results we can conclude that the BDI has reasonable psychometric properties:

  • High internal consistency, and reasonable stability over time
  • High concurrent validity with respect to other measures of depression, particularly in psychiatric samples.

© POSbase 2005