Question 1

A 2 x 3 $\chi$2 analysis is not very safe if:

Accepted Answer

A)  Any expected frequency cell value is less than 5 
B)  Any observed frequency cell value is less than 5 
C)  More than 20% of observed frequency cell values are less than 5 
D)  More than 20% of expected frequency cell values are less than 5 D

Question 2

A goodness of fit $\chi$2 analysis:

Accepted Answer

A)  Tests the fit of frequencies on a single variable to a theoretical distribution 
B)  Tests the fit of frequencies on two variables to a theoretical distribution 
C)  Tests the fit of frequencies on several variables to a theoretical distribution 
D)  Tests the fit of frequencies on a single variable only to a normal distribution A

Question 3

Twenty children are given several sessions of guided play with liquids and containers, while another 20 children serve as controls. Each child is tested on a liquid conservation task and it is found that 15 of the guided play children show conservation on the task whereas only 8 of the control children do so.
-A $\chi$2 analysis on the data above gives:

Accepted Answer

A)  $\chi$2 = 5.013 with p 2 = 5.013 with p 2 = 5.013 with p 2 = 5.013 with p < .05 and 2 df A

Question 4

8) In a loglinear analysis which looks at the association between gender, age (old/young), housing (own house or not) and whether people keep their dental appointment or not there would be:

Accepted Answer

A)  One 4-way interaction, four 3-way interactions and six 2-way interactions 
B)  One 4-way interaction, three 3-way interactions and four 2-way interactions 
C)  Three 4-way interactions, four 3-way interactions and six 2-way interactions 
D)  One 4-way interaction, three 3-way interactions and six 2-way interactions

Question 5

The only kind of data that can occur in the cells of a $\chi$2 analysis are:

Accepted Answer

A)  Percentages 
B)  Ratios 
C)  Frequencies 
D)  All of the above

Question 6

Data for a $\chi$2 analysis must come from:

Accepted Answer

A)  An unrelated design 
B)  A related design 
C)  A matched pairs design 
D)  A single subject design

Question 7

Twenty children are given several sessions of guided play with liquids and containers, while another 20 children serve as controls. Each child is tested on a liquid conservation task and it is found that 15 of the guided play children show conservation on the task whereas only 8 of the control children do so.
-5) The expected frequency for control children conserving is:

Accepted Answer

A)  12.5 
B)  8 
C)  11.5 
D)  15

Question 8

The expected frequencies in a $\chi$2 analysis are:

Accepted Answer

A)  The frequencies expected to occur in the observation 
B)  The frequencies expected under the null hypothesis 
C)  The frequencies expected under the research hypothesis 
D)  The frequencies actually observed in the research study

Question 9

The effect size in a $\chi$2 analysis can be estimated using:

Accepted Answer

A)  Spearman's correlation coefficient 
B)  A t test 
C)  Cramer's phi 
D)  Loglinear analysis

Question 10

A $\chi$2 analysis can be one-tailed when:

Accepted Answer

A)  There are two columns and two rows 
B)  There is more than one column and more than one row 
C)  There is one row with two cells 
D)  There is any number of rows and columns

Exam 18: Tests for Categorical Variables and Frequency Tables

A 2 x 3 $\chi$ ² analysis is not very safe if:

A goodness of fit $\chi$ ² analysis:

8) In a loglinear analysis which looks at the association between gender, age (old/young) , housing (own house or not) and whether people keep their dental appointment or not there would be:

The only kind of data that can occur in the cells of a $\chi$ ² analysis are:

Data for a $\chi$ ² analysis must come from:

The expected frequencies in a $\chi$ ² analysis are:

The effect size in a $\chi$ ² analysis can be estimated using:

A $\chi$ ²analysis can be one-tailed when:

Exam 18: Tests for Categorical Variables and Frequency Tables

A 2 x 3 χ\chiχ 2 analysis is not very safe if:

A goodness of fit χ\chiχ 2 analysis:

8) In a loglinear analysis which looks at the association between gender, age (old/young) , housing (own house or not) and whether people keep their dental appointment or not there would be:

The only kind of data that can occur in the cells of a χ\chiχ 2 analysis are:

Data for a χ\chiχ 2 analysis must come from:

The expected frequencies in a χ\chiχ 2 analysis are:

The effect size in a χ\chiχ 2 analysis can be estimated using:

A χ\chiχ 2 analysis can be one-tailed when: