Factors Leading to the Emergence of Community Psychology in the Mid-20th-Century

question 9

Multiple Choice

Factors leading to the emergence of community psychology in the mid-20th-century in the U.S.were changes in mental health services,and ____ .

• A)social movements
• B)the influence of the War on Drugs
• C)interest in group dynamics and action research
• D)both 'a' and 'c'

---

Definitions:

Alpha Level

Alpha level, or significance level, is the threshold of probability at which you reject the null hypothesis, typically set at 0.05 or 5%.

Critical Values

Critical values are specific points on the scale of a test statistic that determine the boundary for rejecting the null hypothesis.

Type I Error

The incorrect rejection of a true null hypothesis, or a false positive, in statistical hypothesis testing.

P-value

A measure in hypothesis testing that indicates the probability of obtaining a result at least as extreme as the one observed, assuming the null hypothesis is true.