“…The AMPS has been shown to be a valid assessment that demonstrates differences in motor and process ability between samples of people with and without disabilities (Bernspång & Fisher, 1995;Cooke, Fisher, Mayberry, & Oakley, 2000;Doble, Fisk, Fisher, Ritvo, & Murray, 1994) as well as a sensitive tool for community-living well older adults (Dickerson & Fisher, 1993, 1997. It has also been shown to be valid across cultures, gender, and diagnoses (Dickerson & Fisher, 1995;Duran & Fisher, 1996;Goto, Fisher, & Mayberry, 1996;Hartman, Fisher, & Duran, 1999). The validity, reliability, and stability of the measurement model of the AMPS are discussed elsewhere (Bernspång, 1999;Fisher, 2003).…”