The data under examination were drawn from a study that employed the
MSI as a measurement instrument (Evans, 2001). The original study examined
relationships between leadership and motivation in a working sample in
Ireland, and employed convenience sampling. The data set contained 252
(186 females, 73.8%; 66 males) financial-service professionals, healthindustry
administrators, and retail and distribution workers, all of whom
were engaged in full-time employment. Participants ranged in age from 20 to
65 years. While participants varied in age and gender with respect to industry,
they are viewed as homogeneous for the purposes of data analysis because the
MSI has been reported by its developers as a structurally stable measure of
work motivation, and is consequently expected to be valid for normally
diverse working samples.