James is a researcher examining the effects of vitamin D deficiency on mood. Based on everything he has read, he speculates that if an individual has a low vitamin D level, then he/she may experience changes in mood. James's speculation can also be described as a _____
A)causal hypothesis.
B)school of thought.
C)theory.
D)psychological perspective.

Question

Quizplus · Accepted Answer

James is making a prediction about a cause-and-effect relationship between variables.

James Is a Researcher Examining the Effects of Vitamin D