- RELIABILITY AND VALIDITY OF THE FUNCTIONAL ANALYSIS SCREENING TOOL - People
We assessed interrater reliability of the FAST with 196 problem behaviors through independent administration to pairs of raters (Study 1) Mean item-by-item agreement between pairs of raters was 71 5% Agreement for individual items ranged from 53 3% to 84 5% Agreement on FAST outcomes, based on comparison of informants’ highest totals, was 64 8%
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