CRC Research Methods 3

Question 1

A rehabilitation counselor reviews 10 years of client records to examine trends in disability-related employment barriers. This is an example of:

Accepted Answer

Archival research

Answer

Archival research analyzes existing records or documents rather than collecting new primary data.

Question 2

Which qualitative data collection method involves the researcher observing participants in their natural environment without manipulating variables?

Accepted Answer

Naturalistic observation

Answer

Naturalistic observation involves studying behavior in real-world settings without researcher interference.

Question 3

In a multiple regression analysis, multicollinearity refers to:

Accepted Answer

High correlation among predictor variables

Answer

Multicollinearity occurs when independent variables are highly intercorrelated, making it difficult to isolate each predictor's effect.

Question 4

The Hawthorne effect is a threat to internal validity because:

Accepted Answer

Participants change behavior simply because they are being observed

Answer

The Hawthorne effect occurs when awareness of being studied alters participant behavior, confounding results.

Question 5

A researcher computes a 95% confidence interval for mean job placement rates. This interval means:

Accepted Answer

There is a 95% probability the true population mean lies within this interval across repeated sampling

Answer

A 95% CI means that if the study were repeated many times, 95% of such intervals would contain the true population parameter.

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