which of the following is an assumption for computing a one-way between-subjects

Question

which of the following is an assumption for computing a one-way between-subjects ANOVA?

a. The population being sampled from is normally distributed

b. Participants were selected to participate using a random procedure

c. One observation has no effect on the likelihood of another observation

d. all of the above

Post hoc tests are computed

a. prior to conducting a hypothesis test

b. To determine which set of degrees of freedom can be attributed to the variability between-groups

c. Following a significant ANOVA test to make pairwise comparisons

d. To determine if groups means differ, even for tests in which the decisionis to retain the null hypothesis

Explanation / Answer

1) 'Anova assumptions

The population being sampled from is normally distributed

Participants were selected to participate using a random procedure

One observation has no effect on the likelihood of another observation

2) Post hoc tests are computed

Following a significant ANOVA test to make pairwise comparisons

Examples Tukey Test And Critical difference Test

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