title: A review of the observational data-collection and reliability procedures reported in The Journal of Applied Behavior Analysis.
abstract: The research published in the Journal of Applied Behavior Analysis (1968 to 1975) was surveyed for three basic elements: data-collection methods, reliability procedures, and reliability scores. Three-quarters of the studies reported observational data. Most of these studies' observational methods were variations of event recording, trial scoring, interval recording, or time-sample recording. Almost all studies reported assessment of observer reliability, usually total or point-by-point percentage agreement scores. About half the agreement scores were consistently above 90%. Less than one-quarter of the studies reported that reliability was assessed at least once per condition.
authors.affiliation: The University of Kansas.
authors.forename: M B
authors.initials: MB
authors.lastname: Kelly