CPSS Applied Research Methods 4

Question 1

A researcher uses Cohen's d = 1.2 to describe the difference in jump height between two training groups. How is this effect size classified?

Accepted Answer

Large

Answer

Cohen's d ≥ 0.8 is classified as a large effect size, and d = 1.2 substantially exceeds this threshold.

Question 2

In a single-subject research design, the A-B-A format refers to:

Accepted Answer

Baseline, treatment, return-to-baseline phases

Answer

The A-B-A design establishes a baseline (A), introduces treatment (B), then withdraws it to return to baseline (A) to confirm the intervention's effect.

Question 3

Which index is most appropriate for evaluating the agreement between two raters using ordinal data?

Accepted Answer

Cohen's weighted kappa

Answer

Cohen's weighted kappa accounts for chance agreement and respects the ordered nature of ordinal rating scales.

Question 4

A sport scientist wants to identify factors that predict athletic injury risk over a season. Which statistical model is most appropriate?

Accepted Answer

Multiple logistic regression

Answer

Multiple logistic regression models the probability of a binary outcome (injured vs. not injured) from multiple predictor variables.

Question 5

What does an intraclass correlation coefficient (ICC) of 0.95 indicate about a measurement tool?

Accepted Answer

Excellent reliability

Answer

ICC values above 0.90 are generally classified as excellent reliability, indicating high consistency across repeated measurements.

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS - Certified Performance and Sport Scientist Practice Test

CPSS Applied Research Methods 4