PRITE - ASSORTED PERTINENT TOPICS EXAM QUESTIONS AND
ANSWERS GRADED A+ 100% GUARANTEED SUCCESS.
Which statistical method attempts to address the effects of participants dropping
out of a study prior to completion? (7x) ANS >>> LAST OBSERVATION CARRIED
FORWARD
Test that measures what it is supposed to measure (7x) ANS >>> VALIDITY
What research study examines a group studied over a prolonged time period? (6x)
ANS >>> 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 are what (3x) ANS >>> ANALYSIS OF VARIANCE
A case-control study would be appropriate in answering an epidemiological
question when the (3x): ANS >>> INCIDENCE OF THE DISEASE IS LOW
What most seriously threatens the external validity of a research study? (3x) ANS
>>> 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) ANS >>> 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)? ANS >>> POWER
Which statistic measures the magnitude of difference between two intervention
groups? (3x) ANS >>> EFFECT SIZE
A rating instrument is said to have high reliability when which of the following
properties is demonstrated: (3x) ANS >>> 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) ANS >>>
CONTENT
What is used to report the deviation of a value from its group mean, expressed in
standard deviation units? (2x) ANS >>> Z SCORE
5 you boy becomes restless, impulsive, and difficult to manage when not given
sufficient exercise. Teacher gives him increased motor activity, and his behaviour
improves. This is an example of: (2x) ANS >>> 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)” ANS >>> COHORT
Which of the following types of studies is best suited to determine prevalence?
(2x) ANS >>> CROSS SECTIONAL
The purpose of designing a study to use the double-blind method is to (2x): ANS
>>> 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) ANS
>>> 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)” ANS >>> EFFECTIVENESS
What statistical measure should be used to determine how 2 independent
variables affect the frequency of the occurrence rate of an event? (2x) ANS >>>
REGRESSION ANALYSIS
Study reports difference that turns out to be by chance, what error is this? (2x)
ANS >>> 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) ANS >>> CASE-CONTROL
, The extent to which an instrument represents the construct being measured is
referred to as what type of validity? (2x) ANS >>> 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) ANS >>> A "TWO-HIT" MODEL OF PATHOGENESIS EXISTS
IN WHICH PREDISPOSING ENVIRONMENTAL FACTORS COMBINE WITH GENETIC
RISKS
The number of individuals with a d/o at a specific time (2x) ANS >>> POINT
PREVALENCE
An effectiveness study differs from an efficacy study by including what? (2x) ANS
>>> REAL WORLD CONDITIONS
What type of reduction strategy is needle exchange? ANS >>> HARM
Method used to reduce false positives with a smaller P value ANS >>> BONFERRONI
CORRECTION
Main advantage of family-based genetic association studies over case- control
association studies ANS >>> LESS AFFECTED BY SYSTEMATIC POPULATION
DIFFERENCES
"Naturalistic investigations of a treatment's effects look at which factor?" ANS >>>
EFFECTIVENESS
ANSWERS GRADED A+ 100% GUARANTEED SUCCESS.
Which statistical method attempts to address the effects of participants dropping
out of a study prior to completion? (7x) ANS >>> LAST OBSERVATION CARRIED
FORWARD
Test that measures what it is supposed to measure (7x) ANS >>> VALIDITY
What research study examines a group studied over a prolonged time period? (6x)
ANS >>> 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 are what (3x) ANS >>> ANALYSIS OF VARIANCE
A case-control study would be appropriate in answering an epidemiological
question when the (3x): ANS >>> INCIDENCE OF THE DISEASE IS LOW
What most seriously threatens the external validity of a research study? (3x) ANS
>>> 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) ANS >>> 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)? ANS >>> POWER
Which statistic measures the magnitude of difference between two intervention
groups? (3x) ANS >>> EFFECT SIZE
A rating instrument is said to have high reliability when which of the following
properties is demonstrated: (3x) ANS >>> 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) ANS >>>
CONTENT
What is used to report the deviation of a value from its group mean, expressed in
standard deviation units? (2x) ANS >>> Z SCORE
5 you boy becomes restless, impulsive, and difficult to manage when not given
sufficient exercise. Teacher gives him increased motor activity, and his behaviour
improves. This is an example of: (2x) ANS >>> 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)” ANS >>> COHORT
Which of the following types of studies is best suited to determine prevalence?
(2x) ANS >>> CROSS SECTIONAL
The purpose of designing a study to use the double-blind method is to (2x): ANS
>>> 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) ANS
>>> 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)” ANS >>> EFFECTIVENESS
What statistical measure should be used to determine how 2 independent
variables affect the frequency of the occurrence rate of an event? (2x) ANS >>>
REGRESSION ANALYSIS
Study reports difference that turns out to be by chance, what error is this? (2x)
ANS >>> 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) ANS >>> CASE-CONTROL
, The extent to which an instrument represents the construct being measured is
referred to as what type of validity? (2x) ANS >>> 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) ANS >>> A "TWO-HIT" MODEL OF PATHOGENESIS EXISTS
IN WHICH PREDISPOSING ENVIRONMENTAL FACTORS COMBINE WITH GENETIC
RISKS
The number of individuals with a d/o at a specific time (2x) ANS >>> POINT
PREVALENCE
An effectiveness study differs from an efficacy study by including what? (2x) ANS
>>> REAL WORLD CONDITIONS
What type of reduction strategy is needle exchange? ANS >>> HARM
Method used to reduce false positives with a smaller P value ANS >>> BONFERRONI
CORRECTION
Main advantage of family-based genetic association studies over case- control
association studies ANS >>> LESS AFFECTED BY SYSTEMATIC POPULATION
DIFFERENCES
"Naturalistic investigations of a treatment's effects look at which factor?" ANS >>>
EFFECTIVENESS
