Fig. 4From: Influence of humor expression on suicidal ideation among adolescents: mediating effects of depressive emotion and positive emotionSchematic calculation diagram of direct effect, indirect effect, and total effect. The indirect effect (IE) of A on C is calculated by a *b + d * e; The direct effect (DE) of A on C is c; The total effect (TE) of A on C is calculated by IE + DEBack to article page