Statistics Question

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What kinds of variables can the chi‐Square goodness‐of‐fit be used for?

Categories = nominal

The p‐value can take on any value between ... .

-1 & 1

P value

0-1

B0 and B1

B0 = intersect of Y axis B1 =

The Scheffe post‐hoc test is used when ...

Because post hoc tests are run to confirm where the differences occurred between groups, they should only be run when you have a shown an overall statistically significant difference in group means Anova test

What is the mean of the following dataset?

Summ / n

Bivariate

two variables Causality Pearson r Cross tabs One sample t test Two sample test CHI square

Multivariate

involving more than two variables Anova Regression

Independent sample t-test only 2 groups

True

Standard deviation can not be used for ordinal variables

True

DV=Health IV=Income R^2=0,11

11% of the variance health DV can be explained by Income IV

H1 (><)

Directional and one tailed

Which statement best describes the interaction effect?

Effect of a IV on another IV

In regression analysis, what is the test for the whole model?

F-Test

continious

Measured along a continuum (height, square meter, 3.22)

Discrete

Measured in whole units (children, 100, country)

Which measure of variability cannot be used for which levels of measurement?

Mode = nominal, ordinal & interval/ratio Median = ordinal & interval/ratio Mean= interval/ratio Range= ordinal & interval/ratio Variance = interval/ratio Standard Deviation = interval/ratio

A researcher studies people's religious affiliations. What level of measurement is this variable?

Nominal

chi-square goodness of fit test level of measurement

Nominal

H1 not

Non-directional and two tailed

Univariate

One-variable data. Range Variance Standard deviation

Level of measurement in mode

Ordinal

We can reject the H0 of a given test of significance when ...

P value < alpha

In Anova, if the F value is large...

Reject H0

confounding variable

a factor other than the independent variable that might produce an effect in an experiment


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