Homework Help: Questions and Answers: Which research design involves collecting data at a single point?
a) Longitudinal design
b) Experimental design
c) Cross-sectional design
Answer:
First, let’s understand what the question is asking: We need to identify which research design collects data at a single point in time.
Now, let’s evaluate each of the options to determine the correct answer:
Given Options: Step by Step Answering
a) Longitudinal design
- This research design involves collecting data from the same subjects repeatedly over a period of time. It is used to observe changes over time.
b) Experimental design
- This design involves manipulating one or more variables to determine their effect on other variables. It can involve single or multiple time points, but it is primarily focused on controlling and manipulating variables to establish cause-and-effect relationships.
c) Cross-sectional design
- This design involves collecting data at a single point in time. It is used to assess the current state or condition of a population or phenomenon without considering changes over time.
Final Answer:
Based on the above analysis, the correct answer is:
c) Cross-sectional design
The research design that involves collecting data at a single point is the cross-sectional design.
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