Psychometric properties and social correlates of assertion measures in chronic alcoholics

Assertion is a major focus of many social skills interventions for alcoholics. The assessment of assertion often relies on self-report measures. However, few psychometric data are available on the most frequently used instruments. This study determined the internal characteristics and structure of two commonly employed measures of assertion: the Wolpe-Lazarus Assertion Inventory and the Callner-Ross Assertion Inventory. In addition, the relationship between responses on these devices and demographic variables, extent of substance abuse, and level of social functioning were examined. Results indicated that both inventories exhibit adequate internal consistency and test-retest reliability. Factor structures were relatively simple and represented general assertion situations. Results are discussed in terms of the need for further refinement of these instruments.