In time-on-task observations, the effects of variations in methodological characteristics on the importance of time-on-task for student achievement were examined. Substantive conclusions were affected by variations in five areas with the greatest differences due to changes in the duration and number of days of observation. (CM)

This paper addresses four issues in the design and execution of behavioral observation in classrooms. These four issues relate to the consequences of using different observation intervals, schedules of observation, student sampling methods, and definitions of on-task and off-task behavior for reliability, means, and correlations of time on-task…