Dr.Jones systematically varies the temperature in the laboratory (70,80,and 90 degrees)while holding other variables constant,and observes that the participants' activity level decreases as the temperature increases.This illustrates
A)a non-causal relationship between temperature and activity level.
B)a causal relationship between temperature and activity level.
C)no relationship between temperature and activity level.
D)an unsystematic relationship between temperature and activity level.

Question

Quizplus · Accepted Answer

Dr. Jones's systematic variation of temperature while holding other variables constant indicates a causal relationship between temperature and activity level. The observed decrease in activity level as temperature increases suggests that temperature is influencing the participants' behavior.

DrJones Systematically Varies the Temperature in the Laboratory (70,80,and 90