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PRITE 2024 - ASSORTED PERTINENT TOPICS

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  • September 27, 2024
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PRITE 2024 -
ASSORTED
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,PRITE 2024 - ASSORTED PERTINENT TOPICS


Biostatistics 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


The extent to which an instrument represents the construct being measured is
referred to as what type of validity? (2x) Answer - CONTENT


Twin studies of patients with schizophrenia have consistently identified
substantial proportions of monozygotic twin pairs that are discordant for the
illness. The most likely explanation is: (2x) Answer - A "TWO-HIT" MODEL OF

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