Nurs 3205 Chapter 9 questions with correct answers
Key Features of Quantitiave Research Design: Interventions Correct
Answer-key questions: will there be an intervention, what specific
design will be used
broad design options:
-experimental (randomized control trial)
-Quasi-experimental (controlled without randomization)
-nonexperimental (observational study)
Key Features of Quantitative Research Design: Comparisons Correct
Answer-key questions: what type of comparisons will be made to
illuminate relationships?
Design options:
-within-subjects design: same people are compared at different times or
under different conditions
-Between-subjects design: Different people are compared (ex. men vs
women)
Other Key Features of Quantitative Research Design Correct Answer--
control over confounding variables: how will confounding variables be
controlled. Which specific confounding variables will be controlled?
Randomization, crossover, homogeneity, matching, statistical control
Randomization Correct Answer-make sure you have a mixture of
variables in each group, decreeing the bias
,Crossover Correct Answer--people in control group will get the
opportunity to get the intervention after the study so that they can
experience intervention, even if it is after the study is over, so they can
get the benefit of the study
Homogeneity Correct Answer--everyone is very similar- controls
confounding variables
Matching Correct Answer--match 2 groups based on major
characteristics. but hard to control all the variables. not best strategy to
control for confounding variables
Best research Correct Answer--designing a rigorous study
Statistical control Correct Answer--control variant by pulling the
conflicting variable out of the study
Masking/blinding Correct Answer--From whom will critical information
be withheld to avert bias?
-making sure they didn't know hypothesis of study to make sure they
don't react differently and affect results of study
-hawthorne study- GE study- studied if different lighting affected work
ethic- people worked harder because they know they were being
watched, observed, and studied.
Single blind Correct Answer-participants are blind to what group they
are in
, Double blind Correct Answer--both participants and researchers do not
know which group each participant are in - avoids bias or different
treatment
Time frames Correct Answer--How often will data be collected?
-When, relative to other events, will data be collected?
-Cross-sectional- measure at one point in time, longitudinal design-
measure same group of people over time (better- gives info about
sustained impact)
Relative timing Correct Answer--When will information on independent
and dependent variables be collected—looking forward or backward in
time?
-Retrospective (case-control), prospective (cohort)
Location Correct Answer--Where will the study take place?
-Setting choice; single site versus multisite (much stronger- more
variety, different circumstances, people)
T or F
An experimental research design involves a nonrandomized controlled
trial. Correct Answer-Falso
Rationale: A quasi-experimental research design involves a controlled
trial without randomization.
Key Features of Quantitiave Research Design: Interventions Correct
Answer-key questions: will there be an intervention, what specific
design will be used
broad design options:
-experimental (randomized control trial)
-Quasi-experimental (controlled without randomization)
-nonexperimental (observational study)
Key Features of Quantitative Research Design: Comparisons Correct
Answer-key questions: what type of comparisons will be made to
illuminate relationships?
Design options:
-within-subjects design: same people are compared at different times or
under different conditions
-Between-subjects design: Different people are compared (ex. men vs
women)
Other Key Features of Quantitative Research Design Correct Answer--
control over confounding variables: how will confounding variables be
controlled. Which specific confounding variables will be controlled?
Randomization, crossover, homogeneity, matching, statistical control
Randomization Correct Answer-make sure you have a mixture of
variables in each group, decreeing the bias
,Crossover Correct Answer--people in control group will get the
opportunity to get the intervention after the study so that they can
experience intervention, even if it is after the study is over, so they can
get the benefit of the study
Homogeneity Correct Answer--everyone is very similar- controls
confounding variables
Matching Correct Answer--match 2 groups based on major
characteristics. but hard to control all the variables. not best strategy to
control for confounding variables
Best research Correct Answer--designing a rigorous study
Statistical control Correct Answer--control variant by pulling the
conflicting variable out of the study
Masking/blinding Correct Answer--From whom will critical information
be withheld to avert bias?
-making sure they didn't know hypothesis of study to make sure they
don't react differently and affect results of study
-hawthorne study- GE study- studied if different lighting affected work
ethic- people worked harder because they know they were being
watched, observed, and studied.
Single blind Correct Answer-participants are blind to what group they
are in
, Double blind Correct Answer--both participants and researchers do not
know which group each participant are in - avoids bias or different
treatment
Time frames Correct Answer--How often will data be collected?
-When, relative to other events, will data be collected?
-Cross-sectional- measure at one point in time, longitudinal design-
measure same group of people over time (better- gives info about
sustained impact)
Relative timing Correct Answer--When will information on independent
and dependent variables be collected—looking forward or backward in
time?
-Retrospective (case-control), prospective (cohort)
Location Correct Answer--Where will the study take place?
-Setting choice; single site versus multisite (much stronger- more
variety, different circumstances, people)
T or F
An experimental research design involves a nonrandomized controlled
trial. Correct Answer-Falso
Rationale: A quasi-experimental research design involves a controlled
trial without randomization.
