These are the appendixes for the report, "Retention, Mobility, and Attrition among School and District Leaders in Colorado, Missouri, and South Dakota." In collaboration with educators in those states, the Regional Educational Laboratory Central used administrative data for 2015/16 to 2018/19 to identify the percentages of school and…

Researchers frequently attempt to identify the specific neurocognitive processes that might be responsible for differences in performance associated with neurological status or other individual difference characteristics by administering two or more conditions of an experimental task to different groups of participants, and focusing on the…

This investigation also studied the relationship between gestational age and preferences for contour. (CB)

Maintains that most of the claims made by Morrison, Morrison, and Keating do not undermine the data analysis and conclusion of a study reported in a 1988 paper. Discusses (1) evidence concerning a common rate of developmental change; (2) functions that characterize developmental stages; and (3) procedures for estimating parameters. (LB)

Results indicate that the auditory stimulation in no way affected task performance. Author argues that great amounts of money should not be spent by either schools or parents in order to eliminate moderate amounts of noise from a child's academic environment. (Author/CB)

An error in the data analysis for a study reported in a 1988 paper by Kail is cited. The paper postulated a model that explained individual differences in the speed of processing on cognitive tasks. Reanalysis of the data suggested that support for the original conclusions is considerably weaker than reported. (LB)

This study was designed to measure adult performance as related to age. Using methodology derived from information theory, information processing ability was measured with the individuals performing as a communication system. Fifty-five school teachers, ranging in age from 20 to 66, served as subjects. In four groups, the subjects judged the sizes…

Data from the National Longitudinal Surveys of Labor Market Experience were analyzed to determine the unemployment experiences of four groups of workers from the labor force during a recent decade. The subjects were men who at the end of the decade were 26-34 and 55-69 and women who were 26-34 and 40-54 years of age. Information on unemployment…