HS 250 Exam 4 Question and answers 100% correct 2024
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Course
HS 250
Institution
HS 250
HS 250 Exam 4 Question and answers 100% correct 2024 HS 250 Exam 4
Analysis of the Intervention: Appropriateness - correct answer •Addresses the primary determinants of obesity—
physical activity and diet
•Addresses the determinant of television viewing by aiming to reduce television...
HS 250 Exam 4
Analysis of the Intervention: Appropriateness - correct answer ✔•Addresses
the primary determinants of obesity—
physical activity and diet
•Addresses the determinant of television viewing by aiming to reduce
television use and increase activity time
•Aimed at appropriate population demographics (adolescents in middle
school)
Data Collection - correct answer ✔•In qualitative studies, the researcher
must:
— Prevent leading — Remain neutral — Have good working knowledge of
topic of interest
•Advances in technology:
— Aid in conducting, transcribing, and coding qualitative responses —
Increase ease of participation
Quantitative Methods - correct answer ✔Essential elements: Experimental
and control groups, Randomization, Pre- and post-testing , Application of an
intervention
Includes experimental and quasi-experimental research
Experimental research - correct answer ✔studies causal relationships
between independent and dependent variables
Experimental and Control Groups - correct answer ✔•Experimental—
participants who receive the intervention
•Control—participants who do not receive the intervention
, — True control group—made equivalent by random assignment
— Comparison group—nonequivalent assignment
•Purpose:
— Assess true impact of the intervention
— Account for events outside the intervention
Randomization - correct answer ✔•Allocating a set of subjects to either
experimental or control group by random procedure
•Purpose: Ensure internal validity
—Eliminate bias from self-selection
—Eliminate alternative explanations of the intervention's effect
Pre- and Post-Testing - correct answer ✔•Testing or observing experimental
and control groups before (pretest) and after (post-test) the intervention
•Time series test: used to measure the long-term impact
— Measurements taken at equal intervals before and after the program
•Purpose:
— Assess impact of intervention by comparing pre- and post-test results
— Can eliminate the need for a control group
Independent variable - correct answer ✔the treatment, characteristic,
exposure, etc., that is being examined to determine its effect
Dependent variable - correct answer ✔the variable examined to determine
whether its observed value changes in the presence of, or when exposed to,
the independent variable
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