Question

In a certain high school, uniforms are optional. A study shows that high school students who wear uniforms have a lower grade average than students who don't wear uniforms. From this study, the school administration claims that they should not require the students to wear uniforms because that is the cause of the lowering grades. Another possible explanation is that students who wear uniforms are poorer than the students who don't wear uniforms and the economic situation of their parents is causing the lower grades.

a) What is the explanatory variable in this study?
economic situation
poorer grades.
wearing a uniform.

b) What is the response variable in this study?
economic situation
wearing a uniform.
poorer grades.

c) What is the lurking variable in this study?
poorer grades.
wearing a uniform.
economic situation

d) Draw a diagram that explains your answers. (Possible diagrams are causation, common response, or confounding). Be sure to label all variables in the diagram.

Answer 1