Research using hope theory has shown that individual differences in trait hope explain variations in how people attain their goals. But hope theory seems to assume that goal attainment is a purely individual pursuit. In this study, hope theory was extended to include the locus-of-hope dimension, with both internal and external agency in generating plans for pursuing goals. External agents may be one's family, peers, or a supernatural/spiritual being. The locus-of-hope dimensions were defined and validated in two studies with Filipino university students. Study 1 used confirmatory factor analysis to test hypothesized models of the locus-of-hope dimension. Study 2 used confirmatory factor analysis to further validate the model, then used regression analysis to show that the internal and external locus-of-hope dimensions were associated with individual-level individualism and collectivism, respectively. (C) 2010 Elsevier Ltd. All rights reserved.