The purpose of the study is to explore the family factors of optimism bias and to examine
the effectiveness of the painting test in the assessment of optimism bias. The study selected 196 pairs
of students and parents in three middle schools in Beijing to measure Kinetic Family Drawing and Life
Event Questionnaire for the purpose of exploring optimism bias. The results show: ① The optimism bias
of middle school students and parents is significantly positively correlated. ② The score of the Kinetic
Family Drawing is significantly positively correlated with the scale test score. Among them, the indicators
of “family size”, “activity consistency” and “picture layout” have a positive predictive effect on optimism
bias of middle school students. The research has concluded that parents’ optimistic bias can predict
middle school students’ optimistic bias, Kinetic Family Drawing has a certain degree of effectiveness in
evaluating optimistic bias.