Questions: 43
Which of the following represents a limitation of observational studies?
Select one:
a. Small subject numbers
b. Cannot establish cause and effect
c. May not reflect real-world conditions
d. Only capable of examining a limited number of variables at a time
Transcript text: 43
Which of the following represents a limitation of observational studies?
Select one:
a. Small subject numbers
b. Cannot establish cause and effect
c. May not reflect real-world conditions
d. Only capable of examining a limited number of variables at a time
Solution
Solution Steps
Step 1: Understand the question
The question asks about a limitation of observational studies. Observational studies are research methods where the researcher observes and records data without intervening or manipulating variables.
Step 2: Analyze the options
a. Small subject numbers: This is not a specific limitation of observational studies. Observational studies can have large or small subject numbers depending on the design.
b. Cannot establish cause and effect: This is a well-known limitation of observational studies. Since there is no manipulation of variables, it is difficult to determine causality.
c. May not reflect real-world conditions: This is not a specific limitation of observational studies. In fact, observational studies often aim to reflect real-world conditions.
d. Only capable of examining a limited number of variables at a time: This is not a specific limitation of observational studies. The number of variables examined depends on the study design, not the observational nature.
Step 3: Determine the correct answer
The most accurate limitation of observational studies is that they cannot establish cause and effect.
Final Answer
\\(\boxed{\text{b. Cannot establish cause and effect}}\\)