Exploring the impact of dimensional comparisons in health contexts

“Did I exercise enough this week?” “Should I eat that last donut?” “Am I in good shape?” Due to the ambiguity and difficulty of answering such questions, people often use comparison-based information to contextualize their standing, inform self-evaluations, and guide behavior. For example, to ascertain whether they have exercised enough, people can make social comparisons to peers (e.g., “Have I exercised more than my friends?”) or temporal comparisons of the present to the past (e.g., “Have I exercised more this week than last week?”). While ample research has examined the relevance and impact of social and temporal comparisons in a range of health contexts (e.g., health behaviors, risk perceptions), the overarching goal of the present review was to explicate the potential relevance and impact of a third type of comparison standard—dimensional comparisons—in health contexts (with an emphasis on health behaviors like exercise). First, we discuss how social and temporal comparisons shape self-evaluations in both health and non-health contexts. Second, we provide an overview of research conducted on dimensional comparisons in non-health contexts and discuss how comparison sources shape self-evaluations and self-concept formation. Third, we explore the potential impact and relevance of dimensional comparisons on self-evaluations in health behavior contexts. Fourth, and finally, we highlight potential future directions and considerations for advancing our knowledge of the relevance and influence of dimensional comparisons in health contexts.