13 | P a g e SUMMARY In South Africa’s rapidly changing social and cultural context, where family dynamics and relationships are changing just as quickly, it is essential to discover which factors contribute to successful relationships that persist over time. Previous research has utilised the Investment Model Scale (Rusbult, 1980) in order to understand commitment processes and the constructs satisfaction, quality of alternatives and investment have been identified as key determinants of commitment in romantic contexts. In the present study however I investigated the primary research question, “How can commitment be measured in the context of family relationships?” Data collection took place through the Family Commitment Scale (which was adapted from the Investment Model Scale) and a new meaningfulness scale was added in an attempt to explore whether meaningfulness would be a better predictor of family commitment than satisfaction, quality of alternatives and investment. The statistical analyses were conducted with the purpose of examining the research question and hypotheses. The findings of the present study contribute to commitment literature by underlining the utility of the Invest Model Scale in nonromantic contexts and providing an instrument which can reliably measure family commitment. Meaningfulness is also highlighted as a motivational feature behind family commitment processes. / Dissertation (MEd)--University of Pretoria, 2013. / gm2014 / Educational Psychology / unrestricted