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Abstract
This study reviewed relationships among and between four span and three variance measures of the dispersions of 36 persons' ratings of the interpersonal behavior of 6 to 8 small group peers and self. Indicating near functional equivalence, same-method, same-occasion span and variance measures correlated highly (mean r = .96). Separately derived from the 15 substantive scales and 140 items of Lorr and McNair's Interpersonal Behavior Inventory, these similar-method, same-occasion spans also correlated highly (.92). Each linked significantly but modestly with spans on a brief, eight-item survey of interpersonal conduct administered about two weeks earlier. Suggesting that such measures' generalizability may be quite limited, different-method, different-occasion span and variance measures correlated only modestly to faintly. Group leaders used wider spans than members, corroborating prior evidence linking larger dispersions with higher rater status and/or self-confidence.
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