Skip to content

The Motivation Assessment Scale: reliability and construct validity across three topographies of behavior.

by P C Duker, J Sigafoos
Research in developmental disabilities ()

Abstract

The psychometric properties of the Motivation Assessment Scale (MAS) were examined. Specifically, reliability, internal consistency, and construct validity were estimated using 90 ratings of different problem behaviors among 86 individuals with mental retardation. Data were analyzed under conditions of (a) three topographies of problem behavior and (b) two methods of calculation. Although reliability and internal consistency were generally poor, the results depended upon the above conditions. Factor analysis revealed that the four factors of the MAS differed from the subscale structure obtained in this study, proposed by the authors of the MAS. Thus, the construct validity of this scale was ambiguous. It is concluded that the MAS should be employed in conjunction with other instruments to assess the functional characteristics of problem behavior with individuals who have mental retardation.

Cite this document (BETA)

Readership Statistics

8 Readers on Mendeley
by Discipline
 
63% Psychology
 
25% Medicine and Dentistry
 
13% Social Sciences
by Academic Status
 
25% Professor > Associate Professor
 
25% Student > Master
 
25% Student > Doctoral Student
by Country
 
13% United Kingdom
 
13% United States

Sign up today - FREE

Mendeley saves you time finding and organizing research. Learn more

  • All your research in one place
  • Add and import papers easily
  • Access it anywhere, anytime

Start using Mendeley in seconds!

Sign up & Download

Already have an account? Sign in