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PRITE 2022 - Assorted Pertinent Topics real exam
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PRITE 2022 - Assorted Pertinent Topics real examBiostatistics - answer ✅✅
Which statistical method attempts to address the effects of participants
dropping out of a study prior to completion? (7x) - answer ✅✅LAST
OBSERVATION CARRIED FORWARD
Test that measures what it is supposed to measure (7x) - answer
✅✅VALIDITY
What research study examines a group studied over a prolonged time
period? (6x) - answer ✅✅COHORT
,Groups of pts w/ MDD, dysthymic d/o, and adjustment d/o were given
mood scales. In order to compare the means of scores of these three
groups, most appropriate statistical methods is what (3x) - answer
✅✅ANALYSIS OF VARIANCE
A case-control study would be appropriate in answering an
epidemiological question when the (3x): - answer ✅✅INCIDENCE OF
THE DISEASE IS LOW
What most seriously threatens the external validity of a research study?
(3x) - answer ✅✅A STUDY POPULATION THAT IS NOT
REPRESENTATIVE OF THE POPULATION TO BE TREATED
Which of the following is the major negative aspect of crossover designs
for research studies? (3x) - answer ✅✅RESIDUAL EFFECTS
Method for estimating sample size required to detect statistical effects of
defined size for variables with well-known variances is referred to as
which of the following types of analysis (3x)? - answer ✅✅POWER
Which statistic measures the magnitude of difference between two
intervention groups? (3x) - answer ✅✅EFFECT SIZE
,A rating instrument is said to have high reliability when which of the
following properties is demonstrated: (3x) - answer ✅✅RATINGS
ARE SIMILAR AMONG DIFFERENT RATERS
Researcher is reviewing a questionnaire to screen for MDD, notices that
the questionnaire has no Qs pertaining to depressed mood but has a few
Qs pertaining to spending sprees. What form of validity is most
affected? (2x) - answer ✅✅CONTENT
What is used to report the deviation of a value from its group mean,
expressed in standard deviation units? (2x) - answer ✅✅Z SCORE
5 yo boy becomes restless, impulsive, and difficult to manage when not
given sufficient exercise. Teacher gives him increased motor activity,
and his behavior improves. This is an example of: (2x) - answer
✅✅GOODNESS OF FIT
"A group of researchers studied the temperament of a group of children
at age 3 months, 2 years, 5 years, and 20 years to determine relationships
between initial temperamental characteristics of children who eventually
had psychiatric problems. This is an example of what type of study?
(2x)" - answer ✅✅COHORT
Which of the following types of studies is best suited to determine
prevalence? (2x) - answer ✅✅CROSS SECTIONAL
, The purpose of designing a study to use the double blind method is to
(2x): - answer ✅✅ELIMINATE BIAS DUE TO EXAMINER
EXPECTATIONS
A test that detects 98% of the people who have a disease, but also
provides a false positive result for many of the people without the
disease, would have a: (2x) - answer ✅✅HIGH SENSITIVITY AND
LOW SPECIFICITY
"Researcher wants to compare a new atypical antipsychotic to the
already existing atypical antipsychotics. Researcher wants to conduct the
study in routine clinical situations rather than using highly selected
subjects. Which of the following study designs would be the most
appropriate? (2x)" - answer ✅✅EFFECTIVENESS
What statistical measure should be used to determine how 2 independent
variables affect the frequency of the occurrence rate of an event? (2x) -
answer ✅✅REGRESSION ANALYSIS
Study reports difference that turns out to be by chance, what error is
this? (2x) - answer ✅✅TYPE I ERROR
Examines the relationship between exposure and effect by comparing
patients with effect to patients without effect, assessing for prior
exposure. Type of study? (2x) - answer ✅✅CASE-CONTROL
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