Reliability and Validity Estimates of the Parker Team Player Survey

Abstract

The Parker Team Player Survey (PTPS) is designed as a self-report assessment of team player style as described in Parker's theory. In an attempt to estimate the psychometric properties of this instrument, both organizational and academic subject pools were used to demonstrate reliability and validity. The PTPS demonstrated acceptable test-retest reliability for all four team styles of Communicator, Collaborator, Challenger, and Contributer. The measures of internal consistency were low for the Challenger and Collaborator styles given the small number of items and the tendency for individuals to report more than one style. No significant differences were found in the reliability coefficients calculated for the business or student samples. Validity was measured through a comparison of self and peer ratings on the PTPS gathered at a variety of organizations. Whereas the correlations were all statistically significant, the correlation for the Collaborator score was low. Additionally, a panel of trained student judges participated in a sorting task in which they sorted the survey stimulus items into one of the four team style categories. This attempt at construct validity showed good agreement for all four styles, with the Collaborator again being the weakest.

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