The personality characteristic locus of control internality is widely-accepted as a trait possessed by women entrepreneurs. Recent research also suggests the presence of a coexisting attribute of similar strength, characterized as influence of a significant other. The presence of one personality characteristic implying perception of self-directed capability, together with indication of need for external assistance, poses a theoretical paradox. The study's purpose was to determine the nature and extent of direct and interactive effects which these and related variables had on entrepreneur return on investment. It was hypothesized that dimensions of significant other, as operationalized for this research, would support internality of locus of control and also modify constraining effects of educational and experiential disadvantage which the literature cites as pertinent to women entrepreneurs. This was nonexperimental, exploratory research of correlational cross-sectional design which examined hypothesized variable linkages. A convenience sample from a women's entrepreneur networking group was surveyed. Significant other elements were derived from factor analysis, resulting in four common dimensions. These factors, together with Rotter's Locus of Control instrument scores, reports on levels of education and experience, and hypothesized interactions, were independent variables. Hierarchial multiple regression was used to test a proposed path model. Two interpretable four-factor solutions derived from significant other variables were tested in two models. Although neither model attained overall significance, individual variables were directionally as hypothesized, and locus of control and certain factoral dimensions attained bivariate significance. Significant other factors appear to influence locus of control through statistical suppression as they interact with other variables. Results point toward a possibility that significant others who most affect female entrepreneur performance are those who give specific advice and aid, rather than moral support. Further research to explore what seems a strong relationship between return on investment and locus of control internality is recommended.