EPPP MCQ 4

Question 1

A Type I error in hypothesis testing occurs when a researcher:

Accepted Answer

Rejects a true null hypothesis

Answer

A Type I error (false positive) occurs when the null hypothesis is true but the researcher incorrectly rejects it; its probability equals alpha (α).

Question 2

Which of the following defense mechanisms involves attributing one's own unacceptable thoughts or feelings to another person?

Accepted Answer

Projection

Answer

Projection involves unconsciously attributing one's own unacceptable impulses or feelings to others as a way of managing internal conflict.

Question 3

According to DSM-5, which of the following is required for a diagnosis of PTSD in adults?

Accepted Answer

Symptoms must be present for at least 1 month

Answer

DSM-5 requires PTSD symptoms to persist for more than one month and cause significant distress or functional impairment.

Question 4

A psychologist using motivational interviewing would most likely respond to client ambivalence by:

Accepted Answer

Exploring and reflecting both sides of the client's ambivalence

Answer

Motivational interviewing uses reflective listening and exploration of ambivalence to strengthen intrinsic motivation for change.

Question 5

The heritability coefficient in behavioral genetics represents:

Accepted Answer

The proportion of phenotypic variance attributable to genetic variance in a population

Answer

Heritability (h²) is a population statistic that describes the proportion of observed variation in a trait that is attributable to genetic variation.

EPPP - Examination for Professional Practice in Psychology Practice Test