A researcher investigates the effect of weather on college students' study habits.On a sunny day,the researcher sat in the quad and recorded the number of minutes of study per student.What is the crucial element missing in this design?

Question

Quizplus · Accepted Answer

The crucial element missing in this design is a control group. A control group is necessary to compare the study habits of students on a sunny day with those on a different type of day, such as a cloudy day or a rainy day. Without a control group, it is impossible to determine if the weather truly had an effect on the study habits of the students.

A Researcher Investigates the Effect of Weather on College Students