This study classifies crime theories into three categories: long-term (poor socialization), mid-term (deprivation of needed resources that could not be acquired through legal ways, and short-term (crime opportunity and low probability of clearance) factors, which have strong relationships with crimes. Empirical research articles, which presented correlation matrix between self-reported crime and its potential causal variables were selected from four criminological journals and then were analyzed by means of meta-analysis. The correlation coefficients were transformed into effect sizes. The average effect size of each potential independent variable was tested by means of t-Test to examine whether it is statistically different from zero. The results support the hypothesis: Under the condition of poor socialization, the stronger the deprivation of the needed resources, that could not be satisfied through legal means, and the suitable target is available, and the capable guardians are absent, and the estimated probability of clearance is low, the higher the probability of emitting a criminal act would be.