Factor analysis of the job satisfaction items yielded a strong first principle
factor, with the first two factor eigenvalues being 6.7 and 1.6. It was decided for
the purpose of the present paper to obtain a single global measure of job
satisfaction. Therefore, factor scores obtained from the single-factor solution
were used to define the single variable, job satisfaction. A similar finding
resulted from the factor analysis of the organisational commitment items, with
the first two eigenvalues being 7.4 and 1.5. A single overall measure of
organisational commitment, commitment, derived from the factor scores from
the single factor solution, was therefore, used in the study.