Exploring the meaning of motivation across cultures: IRT analyses of the goal instability scale

Alex Casillas, E. Matthew Schulz, Steven B. Robbins, Paulo Jorge Santos, Richard M. Lee

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

The present study uses item response theory (IRT) to establish comparability between the English and Portuguese versions of the Goal Instability Scale (GIS), a measure of generalized motivation. A total of 2,848 American and 679 Portuguese high school students were administered their respective language versions of the GIS. Results showed only minor differences in item performance between language versions, suggesting equivalent measurement of the underlying motivational construct. Implications regarding the interpretation of IRT analyses for intervention purposes, as well as future research, are discussed.

Original languageEnglish (US)
Pages (from-to)472-489
Number of pages18
JournalJournal of Career Assessment
Volume14
Issue number4
DOIs
StatePublished - Nov 1 2006

Keywords

  • Cross-cultural assessment
  • Goal instability scale
  • Item response theory
  • Motivation
  • Test adaptation

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