Question

question 13

what is a major weakness of observational studies?

they do not allow the researcher to explain causal relationships.

it can allow for a more natural observation setting, such as a play area or park.

it allows researchers to observe how people behave rather than have them self report.

they do not provide numerical data.

Explanation:

Define observational studies

Observational studies involve researchers observing and recording ongoing behavior without manipulating any variables or assigning participants to different conditions.

Evaluate the options

• "They do not allow the researcher to explain causal relationships.": Because the researcher does not manipulate an independent variable or control for confounding variables (unlike in a controlled experiment), they cannot establish a cause-and-effect (causal) relationship. This is a major limitation/weakness.
• "It can allow for a more natural observation setting, such as a play area or park.": This describes a strength (ecological validity), not a weakness.
• "It allows researchers to observe how people behave rather than have them self report.": This is a strength, as it avoids self-report biases.
• "They do not provide numerical data.": This is incorrect. Observational studies can collect quantitative (numerical) data, such as counting the frequency of a specific behavior.

Identify the major weakness

The inability to establish causal relationships is the primary methodological weakness of observational designs compared to experimental designs.

Answer:

• (A) They do not allow the researcher to explain causal relationships. (Correct answer)
• (B) It can allow for a more natural observation setting, such as a play area or park.
• (C) It allows researchers to observe how people behave rather than have them self report.
• (D) They do not provide numerical data.