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Brief report: Test-retest reliability of self-reported adolescent risk behaviour
Alan J Flisher1, Janet Evans, Martie Muller
1Department of Psychiatry and Mental Health, Groote Schuur Hosipital, University of Cape Town, Observatory 7925, South Africa. aflisher@curie.uct.ac.za
Abstract:
There is a paucity of test-retest reliability data for adolescent self-reports of a wide range of risk behaviours. Grade 8 and 11 students (N = 358) completed a questionnaire on two occasions between 10 and 14 days apart. It included items about use of various substances, violent behaviour, suicidality, and sexuality. Cohen's kappa was almost perfect for 1 item (kappa = 85.4%); in the substantial range (61-80%) for 4 items; and in the moderate range (41-60%) for 3 items. For the remaining 7 items, the percentage agreement was higher than 92.0%. The questionnaire thus demonstrates adequate test-retest reliability.
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