Some researchers believe that the higher numbers of single-parent families is a key reason for the increased rates of violent crime in the usa compared to 40 or 50 years ago. on the other hand, it is true that there are many differences between single-parent and two-parent families, any one or combination of which may explain these increases in violent crime. this is an issue that addresses the principle of

The principle of correlation v causation.

Explanation:

This is an issue that addresses the principle of correlation v causation. Correlation between two events is the relationship between two variables. The dependent variable and the independent variable. In a correlation, both variables are related. An increase in one variable causes the increase or the decrease of the other one. In causation, the relationship between the variables is of cause and effect. One event is caused by the other one. Although researchers believe that the higher numbers of single-parent families are a key reason for the increased rates of violent crime in the USA compared to 40 or 50 years ago, these variables may be correlated but one may not be the cause of the other one.

you should try adrenaline. it kicks in in situations like this.