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PSY1SFP - WEEK 4 PART 2

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Questions and Answers

What is the primary concern in ensuring high internal validity in research design?

Maximizing sample size

Reducing researcher bias

Increasing the number of experimental conditions

Avoiding selection bias (correct)

What type of threat to internal validity is associated with changes in the instrument or observer over repeated testing?

Mortality

Experimenter bias

History

Instrument change (correct)

Which of the following is NOT a remedy for mortality as a threat to internal validity?

Matched controls on factors related to attrition

Increased sample size (correct)

Control group

Tripled-blind study

What type of threat to internal validity occurs when the researcher's expectations or biases influence the participant's response?

Experimenter bias Signup and view all the answers

What is the primary purpose of using a control group in research design?

To control for extraneous variables Signup and view all the answers

What is the primary concern of a researcher in terms of validity when designing a study?

To eliminate as many potential biases as possible Signup and view all the answers

Which type of validity is concerned with the confidence that the outcome is due to the manipulation/measures used?

Internal validity Signup and view all the answers

What is the primary goal of assessing the validity of a study?

To ensure that the results are trustworthy and not influenced by biases Signup and view all the answers

What is a consequence of not considering validity when designing a study?

Interpreting the results becomes more difficult Signup and view all the answers

What is the definition of validity in the context of research?

The extent to which the score 'behaves' as expected from theory Signup and view all the answers

What is the primary purpose of discriminant validity?

To demonstrate that a measure is not assessing a different trait Signup and view all the answers

What is a key factor in determining high external validity?

The representativeness of the sample of participants to the population Signup and view all the answers

What is a threat to external validity?

A non-representative sample of participants Signup and view all the answers

What is the primary concern of external validity?

Can the findings be generalized to all situations? Signup and view all the answers

Why is random selection of participants rare in research?

Due to ethical and logistical concerns Signup and view all the answers