| Abstract: | Studied the magnitude and stability of individual differences in the amount of time required to achieve a criterion level of performance (time-to-criterion). Time-to-criterion was defined by (a) the amount of elapsed time and (b) the amount of on-task time required to attain the criterion. 90 8th graders were randomly assigned either to a mastery learning class in which all Ss were helped to attain an 85% mastery standard or to 1 of 2 nonmastery classes. Ss learned a 3-unit sequence of programmed material in matrix arithmetic. Results from the 82 Ss who completed the study indicate that time-to-criterion (defined in both manners) was an alterable human characteristic. (PsycINFO Database Record (c) 2010 APA, all rights reserved) |
