If students who complete a study skills course raised their grade point averages, can we conclude that the course caused their improvement?

a. Yes, because the scientific data was collected.
b. Yes, because a negative correlation exists between these students' grade point averages before and after taking the course.
c. Yes, because the course resulted in a self-fulfilling prophecy.
d. No, because there was no control group.

d

Psychology

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Mood swings during adolescence

A) are the direct result of changes in hormone levels. B) are no greater than those during childhood or adulthood. C) reflect both a larger number of unpredictable events and a greater vulnerability to them. D) are just as extreme in late adolescence as during puberty.

Psychology

____ may include a variety of components, such as cultural origin, cultural traditions, race, religion, and language

a. Ethnicity b. Race c. Socioeconomic status d. Cultural independency

Psychology