If you were interested in studying the effects of varying preparatory instructions on the perception of pain during an injection,the instructions would be a(n)_____ variable and the amount of perceived pain would be a(n)____ variable.
A)independent;dependent
B)dependent;dependent
C)secondary;independent
D)independent;independent

Question

Quizplus · Accepted Answer

The independent variable in this scenario is the preparatory instructions, as they are what is being manipulated by the researcher. The dependent variable is the amount of perceived pain, as it is the outcome variable that is thought to be influenced by the preparatory instructions. Choice C is incorrect because secondary variables are not commonly used in experimental designs. Choice B and Choice D are both incorrect as they both suggest that the dependent variable is also dependent, which does not make sense.

If You Were Interested in Studying the Effects of Varying