Moderation effects of justice sensitivity between personality and public mood in volunteers

Objective To explore the relationship between big-five personality, and public mood of volunteers, and to find out the moderator effect of justice sensitivity. Methods A total of 1 022 volunteers were investigated. The Big-Five Inventory (BFI), Public Mood Scale (PMS), Justice Sensitivity Inventory (JSI) were applied to all subjects. Results The average score was (19.77±4.49) for extraversion, (26.69±4.13) for agreeableness, (23.33±5.37) for conscientiousness, (12.49±4.91) for neuroticism, (24.95±5.44) for openness, (8.78±3.23) for positive public mood, (3.46±3.06) for negative public mood and correlated with (26.85±10.55) for observer sensitivity. The extraversion, agreeableness, conscientiousness and openness were correlated with positive public mood(β=0.31, P<0.01; β=0.25, P<0.01; β=0.29, P<0.01; β=0.26, P<0.01), and negatively correlated with public mood (β=-0.14, P<0.01; β=-0.29, P<0.01; β=-0.20, P<0.01; β=-0.08, P<0.01). Neuroticism was negatively correlated with positive public mood (β=-0.27, P<0.01), and positively correlated with negative public mood (β=0.31, P<0.01). The interaction effect of agreeableness and observer sensitivity negatively correlated with positive public mood, negative public mood (β=-0.09, P<0.01; β=-0.07, P<0.05). The interaction effect of neuroticism and observer sensitivity was positively correlated with positive public mood (β=0.08, P<0.01). Conclusion Observer sensitivity plays a regulative role between big-five personality and mental health, and can slow the negative impact of low agreeableness to positive public mood, strengthen the impact of low agreeableness to negative public mood, and slow the negative impact of high neuroticism to positive public mood. Key words: Volunteer; Big-Five personality; Justice sensitivity; Public mood; Moderator effect