Abstract
Using schema theory, this study explored the knowledge structures that stepchildren hold about their stepfamilies. Two studies developed a reliable measure of six themes of stepfamily functioning. In Study 1, 251 adult and adolescent stepchildren completed a pilot inventory. Factor-analytic results reduced the pilot inventory from 192 items to 65 items and demonstrated that each dimension could be measured empirically. In Study 2, 586 adult and adolescent stepchildren completed the revised inventory and produced a new, multidimensional measure: The Stepfamily Life Index (SLI). Evidence of internal reliability and discriminant validity for the SLI is offered, and implications are discussed.
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