Question 1

When would you consider using a loglinear analysis as the method of choice?

Accepted Answer

A)  When data need to be collapsed 
B)  When sample sizes are large 
C)  When there are several categorical variables 
D)  None of the above 
A)  When data need to be collapsed 
B)  When sample sizes are large 
C)  When there are several categorical variables 
D)  None of the above C

Question 2

A calculated value of chi-square

Accepted Answer

A)  Compares the frequencies of categories of items in a sample to the frequencies that are expected in the population. 
B)  Compares the frequencies of categories in the population to those expected in the sample. 
C)  Compares the mean number of categories in a sample to those in the population. 
D)  Compares the mean number of frequencies in a population to those in the sample. 
A)  Compares the frequencies of categories of items in a sample to the frequencies that are expected in the population. 
B)  Compares the frequencies of categories in the population to those expected in the sample. 
C)  Compares the mean number of categories in a sample to those in the population. 
D)  Compares the mean number of frequencies in a population to those in the sample. A

Question 3

Loglinear analysis is not

Accepted Answer

A)  A goodness-of-fit test that allows you to test all the effects. 
B)  A test that employs an algorithm to generate expected cell frequencies for each model . 
C)  A test that will find the model that best represents the data. 
D)  A test that employs a differential analysis. 
A)  A goodness-of-fit test that allows you to test all the effects. 
B)  A test that employs an algorithm to generate expected cell frequencies for each model . 
C)  A test that will find the model that best represents the data. 
D)  A test that employs a differential analysis. D

Question 4

In which sub-dialog box can the chi-square test be found?

Accepted Answer

A)  Frequencies: Percentages 
B)  Crosstabs: Statistics 
C)  Bivariate: Pearson 
D)  sex: Female 
A)  Frequencies: Percentages 
B)  Crosstabs: Statistics 
C)  Bivariate: Pearson 
D)  sex: Female

Question 5

Chi-square is a test of

Accepted Answer

A)  Difference 
B)  Relationship 
C)  Association 
D)  Factors 
A)  Difference 
B)  Relationship 
C)  Association 
D)  Factors

Question 6

In the following table, what number is missing? (marked with ?) SEX * GROUPS Crosstabulation

Accepted Answer

A)  6 
B)  2.6 
C)  1.4 
D)  9.4 
A)  6 
B)  2.6 
C)  1.4 
D)  9.4

Question 7

A study undertaken by Reed (2004) looked at an evaluation of the effect of an intervention across medical care providers in an institution and at physician group practice level. The patient group were diabetics. Within the physician care group, there were a non-intervention group of patients and an intervention group. The following result was derived using the Pearson chi-square: χ2 = 99.58, p = .0001

Accepted Answer

A)  No difference between the groups 
B)  A significant difference between the groups and intervention effective 
C)  A significant difference between the groups and intervention not effective 
D)  None of the above 
A)  No difference between the groups 
B)  A significant difference between the groups and intervention effective 
C)  A significant difference between the groups and intervention not effective 
D)  None of the above

Question 8

Loglinear analysis is

Accepted Answer

A)  A multivariate alternative to chi-square. 
B)  A multivariate equivalent to linear regression. 
C)  An analytical form of logistic regression. 
D)  A way of working with logarithms when there are a lot of numbers. 
A)  A multivariate alternative to chi-square. 
B)  A multivariate equivalent to linear regression. 
C)  An analytical form of logistic regression. 
D)  A way of working with logarithms when there are a lot of numbers.

Question 9

A study entitled 'Structural equation and log-linear modelling: a comparison of methods in the analysis on caregivers' health' by Zhu et al. (2006) showed a large effect size in the interaction between psychological health and physical health . What can be deduced by this finding?

Accepted Answer

A)  Both factors are significantly related in the study. 
B)  Both factors are significantly unrelated in the study. 
C)  Both factors have an effect on the study results. 
D)  None of the above. 
A)  Both factors are significantly related in the study. 
B)  Both factors are significantly unrelated in the study. 
C)  Both factors have an effect on the study results. 
D)  None of the above.

Question 10

Which is an assumption of chi-square?

Accepted Answer

A)  That the data are normally distributed. 
B)  That each subject contributes data to only one cell. 
C)  That the data are continuous. 
D)  That there is little variability among the data. 
A)  That the data are normally distributed. 
B)  That each subject contributes data to only one cell. 
C)  That the data are continuous. 
D)  That there is little variability among the data.

Question 11

For the same data, a chi-square test produced the SPSS output below. What can we conclude from this output?

Accepted Answer

A)  Women watched significantly more programmes than men. 
B)  Significantly more soap operas were watched. 
C)  The profile of programmes watched was significantly different between men and women. 
D)  Men and women watch similar types of programmes. 
A)  Women watched significantly more programmes than men. 
B)  Significantly more soap operas were watched. 
C)  The profile of programmes watched was significantly different between men and women. 
D)  Men and women watch similar types of programmes.

Question 12

Kuhn et al. (1997) identify the following Pearson chi-square test result when looking at the shape of acromion and rotator cuff tears: Х2 = 17.636, P = .0005 What would you deduce from this result?

Accepted Answer

A)  The result is significant. 
B)  The result is not significant. 
C)  The result needs to be modified using Fisher's exact test. 
D)  None of the above. 
A)  The result is significant. 
B)  The result is not significant. 
C)  The result needs to be modified using Fisher's exact test. 
D)  None of the above.

Question 13

Which of the following is an advantage of loglinear analysis?

Accepted Answer

A)  It allows analysis of different types of data. 
B)  It provides a systematic approach to the analysis of complex multidimensional tables. 
C)  Empty cells do not lower the power of the test. 
D)  It means you do not have to compare models. 
A)  It allows analysis of different types of data. 
B)  It provides a systematic approach to the analysis of complex multidimensional tables. 
C)  Empty cells do not lower the power of the test. 
D)  It means you do not have to compare models.

Question 14

In a study of 'communicating the significance of radiologic test results' by Black and Armstrong (1986), the use of likelihood ratios is very important to the work of the radiologist Why?

Accepted Answer

A)  Because it provides a reliable predictor of disease probability. 
B)  Because it assists with computation of the result. 
C)  Because it has a low predictive power. 
D)  None of the above. 
A)  Because it provides a reliable predictor of disease probability. 
B)  Because it assists with computation of the result. 
C)  Because it has a low predictive power. 
D)  None of the above.

Question 15

Under what circumstances would Yates's correction be used?

Accepted Answer

A)  Large quantities of data 
B)  In 2 × 2 tables of data 
C)  In 3 × 3 tables of data 
D)  In 4 × 4 tables of data 
A)  Large quantities of data 
B)  In 2 × 2 tables of data 
C)  In 3 × 3 tables of data 
D)  In 4 × 4 tables of data

Question 16

A researcher asked 933 people which type of programme they prefer to watch on television. Results are below. What is the expected frequency for men who liked to watch sport?

Accepted Answer

A)  132 
B)  94.19 
C)  64.09 
D)  27.45 
A)  132 
B)  94.19 
C)  64.09 
D)  27.45

Question 17

Based on the data above, what are the odds of being a man if you watch sport?

Accepted Answer

A)  0.47 
B)  0.14 
C)  0.41 
D)  2.13 
A)  0.47 
B)  0.14 
C)  0.41 
D)  2.13

Question 18

Which of the following is not an assumption to be met for loglinear analysis?

Accepted Answer

A)  Cells of the contingency table must be independent. 
B)  All cells must have expected frequencies greater than 5. 
C)  All cells must have expected frequencies greater than 1. 
D)  All of the above. 
A)  Cells of the contingency table must be independent. 
B)  All cells must have expected frequencies greater than 5. 
C)  All cells must have expected frequencies greater than 1. 
D)  All of the above.

Question 19

When would you consider converting χ2 to odds ratio?

Accepted Answer

A)  When calculating the effect size before performing a chi-square test 
B)  When calculating the likelihood before performing a chi-square test 
C)  When calculating the effect size after performing a chi-square test 
D)  When calculating the likelihood after performing a chi-square test 
A)  When calculating the effect size before performing a chi-square test 
B)  When calculating the likelihood before performing a chi-square test 
C)  When calculating the effect size after performing a chi-square test 
D)  When calculating the likelihood after performing a chi-square test

Question 20

In a study by Sheiham et al. (2002) of 'the relationship between oral health status and body mass index among older people' in Great Britain, Fisher's exact test was used Why would this test have been used in this instance?

Accepted Answer

A)  An adjusted odds ratio would not provide a valid effect size. 
B)  An adjusted odds ratio could not be used as the sample was too large. 
C)  An adjusted odds ratio could not be used as the sample was too small. 
D)  none of the above. 
A)  An adjusted odds ratio would not provide a valid effect size. 
B)  An adjusted odds ratio could not be used as the sample was too large. 
C)  An adjusted odds ratio could not be used as the sample was too small. 
D)  none of the above.

When would you consider using a loglinear analysis as the method of choice?

A calculated value of chi-square

Loglinear analysis is not

In which sub-dialog box can the chi-square test be found?

Chi-square is a test of

In the following table, what number is missing? (marked with ?) SEX * GROUPS Crosstabulation

Loglinear analysis is

A study entitled 'Structural equation and log-linear modelling: a comparison of methods in the analysis on caregivers' health' by Zhu et al. (2006) showed a large effect size in the interaction between psychological health and physical health . What can be deduced by this finding?

Which is an assumption of chi-square?

For the same data, a chi-square test produced the SPSS output below. What can we conclude from this output?

Kuhn et al. (1997) identify the following Pearson chi-square test result when looking at the shape of acromion and rotator cuff tears: Х² = 17.636, P = .0005 What would you deduce from this result?

Which of the following is an advantage of loglinear analysis?

In a study of 'communicating the significance of radiologic test results' by Black and Armstrong (1986), the use of likelihood ratios is very important to the work of the radiologist Why?

Under what circumstances would Yates's correction be used?

A researcher asked 933 people which type of programme they prefer to watch on television. Results are below. What is the expected frequency for men who liked to watch sport?

Based on the data above, what are the odds of being a man if you watch sport?

Which of the following is not an assumption to be met for loglinear analysis?

When would you consider converting χ² to odds ratio?

In a study by Sheiham et al. (2002) of 'the relationship between oral health status and body mass index among older people' in Great Britain, Fisher's exact test was used Why would this test have been used in this instance?

Why Is My Evil Lecturer Forcing Me to Learn Statistics

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

The Beast of Bias

Non-Parametric Models

Correlation

The Linear Model Regression

Comparing Two Means

Moderation, Mediation and Multicategory Predictors

Glm 1: Comparing Several Independent Means

Glm 2: Comparing Means Adjusted for Other Predictors Analysis of Covariance

Glm 3: Factorial Designs

Glm 4: Repeated-Measures Designs

Glm 5: Mixed Designs

Multivariate Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Outcomes: Logistic Regression

Multilevel Linear Models

Filters

Exam 19: Categorical Outcomes: Chi-Square and Loglinear Analysis

When would you consider using a loglinear analysis as the method of choice?

A calculated value of chi-square

Loglinear analysis is not

In which sub-dialog box can the chi-square test be found?

Chi-square is a test of

In the following table, what number is missing? (marked with ?) SEX * GROUPS Crosstabulation

Loglinear analysis is

A study entitled 'Structural equation and log-linear modelling: a comparison of methods in the analysis on caregivers' health' by Zhu et al. (2006) showed a large effect size in the interaction between psychological health and physical health . What can be deduced by this finding?

Which is an assumption of chi-square?

For the same data, a chi-square test produced the SPSS output below. What can we conclude from this output?

Kuhn et al. (1997) identify the following Pearson chi-square test result when looking at the shape of acromion and rotator cuff tears: Х2 = 17.636, P = .0005 What would you deduce from this result?

Which of the following is an advantage of loglinear analysis?

In a study of 'communicating the significance of radiologic test results' by Black and Armstrong (1986), the use of likelihood ratios is very important to the work of the radiologist Why?

Under what circumstances would Yates's correction be used?

A researcher asked 933 people which type of programme they prefer to watch on television. Results are below. What is the expected frequency for men who liked to watch sport?

Based on the data above, what are the odds of being a man if you watch sport?

Which of the following is not an assumption to be met for loglinear analysis?

When would you consider converting χ2 to odds ratio?

In a study by Sheiham et al. (2002) of 'the relationship between oral health status and body mass index among older people' in Great Britain, Fisher's exact test was used Why would this test have been used in this instance?

Why Is My Evil Lecturer Forcing Me to Learn Statistics

The Spine of Statistics

The Phoenix of Statistics

The Ibm Spss Statistics Environment

Exploring Data With Graphs

The Beast of Bias

Non-Parametric Models

Correlation

The Linear Model Regression

Comparing Two Means

Moderation, Mediation and Multicategory Predictors

Glm 1: Comparing Several Independent Means

Glm 2: Comparing Means Adjusted for Other Predictors Analysis of Covariance

Glm 3: Factorial Designs

Glm 4: Repeated-Measures Designs

Glm 5: Mixed Designs

Multivariate Analysis of Variance Manova

Exploratory Factor Analysis

Categorical Outcomes: Logistic Regression

Multilevel Linear Models

Filters

Kuhn et al. (1997) identify the following Pearson chi-square test result when looking at the shape of acromion and rotator cuff tears: Х² = 17.636, P = .0005 What would you deduce from this result?

When would you consider converting χ² to odds ratio?