When looking for a relationship between two variables using chi square analysis,

Question

When looking for a relationship between two variables using chi square analysis, the appropriate scale of measurement for your two variables is _________.

Question 1 options:

a)

Nominal

b)

Ordinal

c)

Interval

d)

Either nominal or ordinal

Question 2 (1 point)

When running chi square analyses, observed frequencies are compared with expected frequencies.

Question 2 options:

Question 3 (1 point)

We use chi square tests for research questions that ________________.

Question 3 options:

a)

Are concerned with finding real differences on a scale between two variables

b)

Apply to a proportion of the population in different categories

c)

Have more than two groups that need to be compared

d)

Describe a portion of the population

Question 4 (1 point)

A chi square test for goodness of fit would be used when we are interested in the relationship between two variables measured on a categorical scale.

Question 4 options:

Question 5 (1 point)

For a chi square test for independence, what are the df for a design with three rows and two columns?

Question 5 options:

a)

2

b)

3

c)

5

d)

6

a)

Nominal

b)

Ordinal

c)

Interval

d)

Either nominal or ordinal

Explanation / Answer

Question 1:
Correct option:

d) Either nominal or ordinal

Question 2:

Correct option:

a) True

EXPLANATION: The chi square test is used to compare the observed results with expected results. The purpose of the test is to determine whether the difference between observed data and expected data is due to chance, or whether it is due to a relationship between the variables under study.

Question 3:

Correct option:

a) Are concerned with finding real differences on a scale between two variables

EXPLANATION: The chi squares analysis is an approprate test when the purpose of research is to examine the relationship between two nominal values.

Question 4:

Correct option:

a) True

The chi square statistic is used for testing relationship between categorical variables.

Question 5:
Correct option:

c) 5

EXPLANATION: df = (c X r) - 1 = (3 X 2) - 1 = 6 - 1 = 5

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