Does Negative Emotion Differentiation Influence How People Choose to Regulate Their Distress After Stressful Events? A Four-Year Daily Diary Study

Much is known about the types of strategies people use to regulate emotions. Less is known about individual differences that influence emotion regulation strategy selection. In this study, we tested the moderating role of negative emotion differentiation (NED; i.e., the ability to label and describe subtle differences among negative emotions) on the relationship between the intensity of stressful daily events and the strategies used to regulate distress arising from these events. Prior research shows that NED is associated with low endorsement of disengagement emotion regulation (e.g., substance use), but less is known about the link to engagement regulation (e.g., problem-solving, seeking social support). Participants were college students (N = 502) completing a 30-day daily diary survey for each of four college years. We preregistered hypotheses that 1) the intensity of each day's most stressful event would be associated with greater use of disengagement and engagement regulation strategies, and 2) people higher in NED would be less likely to use disengagement and more likely to use engagement strategies when highly stressed. Results suggest that higher stress intensity is associated with greater use of all regulation strategies. Greater NED is associated with less use of disengagement regulation strategies, whereas NED was unrelated to engagement regulation strategies and did not moderate the relationship between stress and engagement strategies. The majority of hypothesized moderation effects of NED were nonsignificant, prompting a reconsideration of whether, when, and how NED plays a role in stress responding.