Question

A Spearman rank order correlation is appropriate for ____________ data because a(n) ______________ cannot be computed.

ranked; meaningful order

nonparametric; population parameter

ordered; standard deviation

ordinal; meaningful mean

The F-ratio is not based directly on SS values because the ____________ for each source vary.

degrees of freedom

expected frequencies

main effects

actual frequencies

simple main effects

estimated means

In order to observe an interaction, there must be

a main effect of each variable.

differences in the marginal means.

heterogeneous data.

homogeneity of variance

two or more independent variables.

A statistically significant effect occurs when the p-value is _______ the specified _______.

less than; alpha level

greater than; margin of error

equal to; beta level

greater than; critical value

less than; critical value

greater than; chance performance

Answer 1

A Spearman rank order correlation is appropriate for a non parametric data because population parameter cannot be computed.

The spearman correlation measures the strength and direction of the relation between the variables under consideration

The F-ratio is not based directly on SS values because the degrees of freedom always vary and Sum of Square alone cannot be used to calculate F score

In order to observe an interaction, there must be 2 or more independent variables is one of the main assumptions for calculating ANOVA

A statistically significant effect occurs when the p-value is less than the specified critical value

The rule holds for any given statistical test that we perform

p value < critical value which implies significance