Suppose You Were the Director of a Rape Crisis Center

question 90

Multiple Choice

Suppose you were the director of a rape crisis center. What could you expect in terms of the frequency of posttraumatic stress disorder (PTSD) among the clients who come to your center immediately and at three months after a traumatic experience?

• A) Because PTSD is delayed, no one would meet the criteria for PTSD at this time.
• B) About 10 percent would meet the criteria for PTSD immediately; about 50 percent would suffer from PTSD at three months.
• C) PTSD symptoms could be present immediately, but symptoms could go away for periods of time.
• D) Because rape is quite common, there will be almost no cases of PTSD either immediately or three months after the assault.

Interpret the results of statistical tests, including confidence intervals and hypothesis tests, in the context of the research question.

Design experiments and observational studies to compare two groups using paired and independent samples.

Evaluate the assumptions of statistical tests and the appropriateness of test selection based on the data structure.

Understand the concept of significance levels and p-values in the context of hypothesis testing.

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