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The interpersonal theory of suicide (ITS) posits that suicidal ideation is interpersonal in nature. More specifically, in the ITS, perceived burdensomeness and thwarted belongingness are dynamic cognitive-affective interpersonal states that engender suicidal ideation. However, intrapersonal (i.e., within the self) existential protective factors for suicidal ideation, such as the ability to make meaning from stressful life events, remain relatively unexplored. The authors examined the degree to which interpersonal and intrapersonal variables contribute to the variance of suicidal ideation in college students (n = 165). Results indicated that students' meaning made of stress was negatively and uniquely associated with suicidal ideation after controlling for ITS interpersonal contributions.
Lockman et al. (2015) studied this question.