Research Methods UC Final questions
and answers graded A+ rated
Randomized controlled trials are generally considered a stronger study design compared to
case-controlled studies. - correct answer ✔✔ True
Non-experimental study designs can be used to establish cause and effect relationships. -
correct answer ✔✔ False
A researcher hypothesizes that listening to classical music during infancy is associated with
higher IQ in childhood and plans to test this hypothesis using a non-experimental study design.
In this case, classical music is the: - correct answer ✔✔ Exposure
Randomly assigning women to receive a vitamin D supplement or placebo and measuring bone
mineral density before and after the intervention is an example of ____________ study design. -
correct answer ✔✔ Randomized Control Trial
Testing blood pressure and cholesterol repeatedly over time in a cohort of research participants
at baseline, 6 months and 1 year is what type of data collection? - correct answer ✔✔
Prospective
The outcome of which type of study is most likely to be affected by recall bias? - correct answer
✔✔ Case-Control Study
Which of the following is a characteristic of qualitative research? - correct answer ✔✔ Results
are often reported in words, narratives and quotes.
, A research study can have a "mixed methods design" (e.g. a study can have a qualitative and
quantitative component). - correct answer ✔✔ True
A researcher wants to answer the question "Are knee injuries in adults related to a history of
playing contact sports in childhood?" What study design would you recommend? - correct
answer ✔✔ Case Control
A researcher wants to answer the question "Is warfarin or aspirin better at preventing strokes in
people with atrial fibrillation?" What study design would you recommend? - correct answer ✔✔
Randomized Control Trial
Research participants' weight status was classified as "underweight", "normal", "overweight" or
"obese" for data analysis. What type of variable was used in data analysis? - correct answer ✔✔
Smoking recorded as number of cigarettes per week is a _____________ . - correct answer ✔✔
Hearing loss recorded as "yes" or "no" is a _____________ . - correct answer ✔✔
The mode is: - correct answer ✔✔ the most frequent score in a distribution.
The mean is: - correct answer ✔✔ the arithmetic average of a distribution of scores and the
most commonly used measure of central tendency.
Weight is a continuous variable. The mean(standard deviation) weight among students in HLTH
3098 section 001 was 157(12.2)pounds, and among students in section 002 was
165(8.7)pounds, respectively. Which section has more variability in student weight? - correct
answer ✔✔
Inferential (analytical) statistics make inferences from a ________ to a ___________ . - correct
answer ✔✔ Sample, population
and answers graded A+ rated
Randomized controlled trials are generally considered a stronger study design compared to
case-controlled studies. - correct answer ✔✔ True
Non-experimental study designs can be used to establish cause and effect relationships. -
correct answer ✔✔ False
A researcher hypothesizes that listening to classical music during infancy is associated with
higher IQ in childhood and plans to test this hypothesis using a non-experimental study design.
In this case, classical music is the: - correct answer ✔✔ Exposure
Randomly assigning women to receive a vitamin D supplement or placebo and measuring bone
mineral density before and after the intervention is an example of ____________ study design. -
correct answer ✔✔ Randomized Control Trial
Testing blood pressure and cholesterol repeatedly over time in a cohort of research participants
at baseline, 6 months and 1 year is what type of data collection? - correct answer ✔✔
Prospective
The outcome of which type of study is most likely to be affected by recall bias? - correct answer
✔✔ Case-Control Study
Which of the following is a characteristic of qualitative research? - correct answer ✔✔ Results
are often reported in words, narratives and quotes.
, A research study can have a "mixed methods design" (e.g. a study can have a qualitative and
quantitative component). - correct answer ✔✔ True
A researcher wants to answer the question "Are knee injuries in adults related to a history of
playing contact sports in childhood?" What study design would you recommend? - correct
answer ✔✔ Case Control
A researcher wants to answer the question "Is warfarin or aspirin better at preventing strokes in
people with atrial fibrillation?" What study design would you recommend? - correct answer ✔✔
Randomized Control Trial
Research participants' weight status was classified as "underweight", "normal", "overweight" or
"obese" for data analysis. What type of variable was used in data analysis? - correct answer ✔✔
Smoking recorded as number of cigarettes per week is a _____________ . - correct answer ✔✔
Hearing loss recorded as "yes" or "no" is a _____________ . - correct answer ✔✔
The mode is: - correct answer ✔✔ the most frequent score in a distribution.
The mean is: - correct answer ✔✔ the arithmetic average of a distribution of scores and the
most commonly used measure of central tendency.
Weight is a continuous variable. The mean(standard deviation) weight among students in HLTH
3098 section 001 was 157(12.2)pounds, and among students in section 002 was
165(8.7)pounds, respectively. Which section has more variability in student weight? - correct
answer ✔✔
Inferential (analytical) statistics make inferences from a ________ to a ___________ . - correct
answer ✔✔ Sample, population
