SIOP Research Methods & Data Analysis in I-O Psychology 4

Question 1

An I-O researcher finds a statistically significant result with p = .04 but a Cohen's d of 0.08. What is the most accurate interpretation?

Accepted Answer

The effect is statistically significant but practically trivial

Answer

A very small effect size (d = 0.08) indicates minimal practical significance even when the result is statistically significant, often due to large sample size.

Question 2

Which threat to external validity occurs when the effect of a treatment is specific to the type of people who volunteered for the study?

Accepted Answer

Interaction of selection and treatment

Answer

The interaction of selection and treatment limits generalizability when findings only hold for the specific volunteer sample studied.

Question 3

Which reliability estimate is most appropriate for assessing the consistency of a single administration of a test?

Accepted Answer

Coefficient alpha (Cronbach's α)

Answer

Coefficient alpha estimates internal consistency reliability from a single administration by examining inter-item correlations.

Question 4

A researcher controls for a variable by including it as a covariate in ANCOVA. What is the primary goal of this procedure?

Accepted Answer

Remove variance due to the covariate to clarify treatment effects

Answer

ANCOVA statistically removes variance attributable to the covariate, reducing error variance and isolating the treatment's effect.

Question 5

Which type of research question is best answered using qualitative methods rather than quantitative methods?

Accepted Answer

How do employees make sense of a corporate merger?

Answer

Qualitative methods are best suited for exploring how and why questions, including how individuals interpret and give meaning to events.

(SIOP) Society for Industrial and Organizational Psychology Certification Practice Test

(SIOP) Society for Industrial and Organizational Psychology Certification Practice Test

SIOP Research Methods & Data Analysis in I-O Psychology 4