A multiple testing procedure for examining implications of the missing completely at random (MCAR) mechanism in incomplete data sets is discussed. The approach uses the false discovery rate concept and is concerned with testing group differences on a set of variables. The method can be used for ascertaining violations of MCAR and disproving this…

The author reviews the use of the Raven Advanced Progressive Matrices (APM) as a general intelligence measure for selection of students to the Chicago public school magnet high school program. Advantages of the APM are cited, including its effectiveness in identifying gifted minority students. (CL)