EPPP Practice Test 4 Questions with Detailed
Verified Answers for Accuracy
A psychologist is asked to go into an assisted living community
and redesign it to enhance interaction among residents. This is
an example of:
a. primary prevention
b. secondary prevention
c. tertiary prevention
d. preventative intervention
✓✓ c. tertiary prevention
Focuses on reducing the residual effects or optimizing
functioning of pts with a chronic condition or disorder (e.g., AA,
day treatment centers). In this scenario, the goal is to optimize
functioning by reducing the isolation of the residents in the
assisted living community.
a. Primary prevention --> preventing the onset of a disease or
disorder, thereby reducing its incidence (e.g., vaccinations).
b. Secondary prevention --> focuses on early identification and
prompt treatment of an illness or disorder that already exists,
with the goal of improving or curing the illness/disorder (e.g.,
mammograms).
An example of cluster sampling is:
a. Dividing the California population into groups based on
income levels and then randomly selecting equal-sized samples
from the groups.
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b. Randomly selecting Californians from different income levels
in proportion to their representation in the population.
c. Dividing the population into groups based on California
counties and then randomly selecting samples from randomly
selected counties.
d. Selecting from the population of California such that each
person has an equal likelihood of being selected.
✓✓ c. Dividing the population into groups based on California
counties and then randomly selecting samples from randomly
selected counties.
Involves identifying naturally occurring groups or clusters (e.g.,
schools in a school district, counties in a state) and then
randomly selecting certain subsets of these clusters. Typically,
all the subjects within the selected clusters are then sampled.
Alternatively, subjects may be randomly selected from the
clusters.
Which of the following statements is true regarding the course
of ADHD?
a. Persons diagnosed with the disorder as children continue to
experience the full disorder in adulthood.
b. Children with ADHD that are treated with stimulants are at
increased risk for drug and alcohol problems.
c. Use of stimulant medications improves the long-term course
of the disorder.
d. Children with aggression or unremitting severe symptoms of
ADHD are at increased risk for developing antisocial
personality disorder.
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✓✓ d. Children with aggression or unremitting severe
symptoms of ADHD are at increased risk for developing
antisocial personality disorder.
Risk of developing ASPD is greater for kids w/ ADHD and
concomitant aggressive sxs or sxs of ADHD that severely impair
fx.
A researcher is studying the effect of different txs for
hyperactivity. First graders receive one of two txs. Group A's
pre-tx mean is 15, and the post-tx mean is 13. Group B's pre-tx
mean is 27, and the post-tx mean is 24. The most likely threat
to this research is:
a. maturation
b. regression.
c. selection
d. demand characteristics
✓✓ c. selection
Most significantly affected by threat of selection bias or non-
random assignment. Given that pretx means are so different,
it's unlikely that subjects were randomly assigned to the groups.
a. maturation --> more concern when study is a one-group pre-
post design.
b. regression --> more concern when study is a one-group pre-
post design.
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When running an ANOVA, a pooled error term is justified
when:
a. sample size is unequal
b. variance is equal
c. all cells have the same number of subjects
d. homoscedasticity is violated
✓✓ b. variance is equal
A pooled error term is used when there's homogeneity of
variance (i.e., the variance is equal). When the variance isn't
equal, a separate error term should be used.
Scores on infant development tests (e.g., the Bayley) are poor
predictors of adult IQ. Which is the least likely explanation for
this phenomenon?
a. Infant development tests emphasize sensory and motor
capacities, whereas adult intelligence tests measure complex
cognitive functions.
b. Variability in maturation rates is a much more significant
factor in infancy than in adulthood.
c. The infant development scales are unreliable.
d. Infant precursors of adult intelligence are not adequately
sampled in these scales.