Extension of the Minnesota Rate of Manipulation Test

Abstract

Using the Ziegler revision of the Minnesota test, the test was extended to include nine procedures: place, right hand; place, left hand; place, both hands simultaneously; place, both hands alternately; turn; turn and place, right hand; turn and place, left hand; turn and place, both hands simultaneously; turn and place, both hands alternately. For each procedure the method was demonstrated; then one practice trial and two timed trials were given. The score for each procedure was total time on two trials. The new procedures were found superior to Ziegler's in three ways: (1) validity coefficients were higher, (2) intercorrelations of test parts were lower, and (3) reliability was increased. (PsycInfo Database Record (c) 2025 APA, all rights reserved)