1. Laura conducts a study on noise and task difficulty on task performance, and

Question

1. Laura conducts a study on noise and task difficulty on task performance, and conducts a two-way ANOVA to analyze her results. Where should she begin with the interpretation of her results?

A) Laura should look at the main effects of noise on performance.

B) Laura should begin looking to see if noise was normally distributed.

C) Laura should look at the interaction effects of noise and task difficulty on performance.

D) Laura should look at the main effects of task difficulty on performance.

2. When a researcher rejects the null hypothesis when conducting a one-way, repeated-measures ANOVA, the researcher should conclude that:

A) a large effect size exists.

B) all population means are different.

C) the results have practical significance.

D) at least one population mean is different.

Explanation / Answer

c)C) Laura should look at the interaction effects of noise and task difficulty on performance.

2)D) at least one population mean is different.

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