9. Two researchers are conducting a randomized control trial on a new treatment
ID: 128827 • Letter: 9
Question
9.
Two researchers are conducting a randomized control trial on a new treatment for weight loss. They have a target population of 50,000 adults, to which they have access to 5,000 of those adults. The researchers use systematic sampling to choose 1,000 adults for their final sample. Data will be collected at multiple time points over 2 years.
Given the time frame for this study you would classify the design as being:
Correlational
Longitudinal
Qualitative
Restrospective
Correlational
Longitudinal
Qualitative
Restrospective
Explanation / Answer
The correct answer is option B that is longitudinal study because study is aiming for the data collection in two years that is data are collected on multiple occasions stating from present and going into the future for comparison across the time.
Correlational study is when the data are collected at only one point of time between many individuals.
Retrospective study is looking back in time using existing data to explain an existing occurrence.
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