Abstract
The present study investigated the validity and reliability of the Rathus Assertion Schedule. In terms of validity results indicated that scores of external raters, unaware of their subjects' self-evaluations, correlated significantly with their subjects' assertion scores. This correlation occurred both prior to and after an assertion training workshop. While both self-reports and external reports demonstrated significant internal consistency, the external reports were clearly more internally consistent than the self-reports. Finally an analysis of mean differences by sex demonstrated that, while external raters perceive men as more assertive than the men perceive themselves, external raters of women and the women themselves agree on the subjects' level of assertiveness.
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