Jim, an early researcher in psychology, was interested in how the mind works. he focused on his own experience of pain in an effort to understand how and why people feel pain. jim was most likely a

Study sample

Explanation:

He used his case, to investigate his hypotheses. Research is usually not conducted in this way, because events called biases happen, which do not allow for reliability and certainty in the study.

it's 150 100% postive

i believe the answer is true