Question 1

A nonparametric test should be pursued if there is a reason to believe that the _____ of the corresponding parametric test have been violated to the extent that the parametric test is not robust.

Accepted Answer

A) kurtotic assumptions 
B) theoretical assumptions 
C) population parameters 
D) distributional assumptions

Question 2

Dr.Jones found that there is a relationship between day time drowsiness and what time you wake up in the morning r(50)= .60,p<0.01.This relationship has a ____________________ correlation.

Accepted Answer

The answer of Dr.Jones found that there is a relationship...

Question 3

The use of Case II statistics is appropriate when a qualitative variable has many values and there are insufficient number of cases within each level to justify the analysis of means,medians,and the like.

Accepted Answer

A) True 
 B)False

Question 4

If both variables are qualitative,but one or both are within-subjects in nature,the appropriate method of data analysis is the chi square test as discussed in Chapter 15..

Accepted Answer

A) True 
 B)False

Question 5

Alternatives to the "null hypothesis testing approach" include:

Accepted Answer

A) estimating effect sizes 
B) Bayesian statistics 
C) a and b 
D) none of these

Question 6

The use of IPod's may induce hearing loss according to research conducted at Washington State University.They had a total of 500 subjects that were given IPods set a decibel (db)rate of either 0 (no sound),40db or 70db.After listening to the same music on the IPod's for 1 week each subject was given a hearing test.The two confounds that should be addressed are the mount of ____________________ prior to the study as well as the participants' ____________________.

Accepted Answer

The answer of The use of IPod's may induce hearing...

Question 7

In the example above it was found that the higher your GPA is the higher you scored on the SAT which indicates_____.

Accepted Answer

A) positive correlation 
B) negative correlation 
C) a significant correlation 
D) significant difference between groups 
E) none of these

Question 8

When both of the variables under study are quantitative and between-subjects in nature,the appropriate method of data analysis is the

Accepted Answer

A) logistic regression. 
B) Mann Whitney U test. 
C) Spearman rank-order correlation. 
D) none of these

Question 9

If group means are the focus of an analysis where the independent variable is qualitative and the dependent variable is quantitative,which of the following are further considerations which must be given before the type of test is chosen?

Accepted Answer

A) The number of values of the dependent variable. 
B) The level of measurement of the dependent variable. 
C) The extent of violation of distributional assumptions. 
D) all of these

Question 10

A parametric procedure would not typically be used when a quantitative dependent variable has only two levels because the _____.

Accepted Answer

A) dependent variable can not be normally distributed 
B) two levels might be correlated 
C) data could not be compared 
D) homogeneity of variance could not be determined

Question 11

The Hotelling T2 test is used when a multivariate analysis of variance is applied to

Accepted Answer

A) a single independent variable that has only two levels 
B) a single independent variable that has more than two levels 
C) two or more independent variables,each of which has only two levels 
D) two or more independent variables,each of which has more than two levels

Question 12

If ranks are the focus,then parametric methods should be pursued.

Accepted Answer

A) True 
 B)False

Question 13

The goal of factor analysis is to determine if the correlations among a set of variables can be accounted for by one or more underlying dimensions,or factors.

Accepted Answer

A) True 
 B)False

Question 14

Which of the following is not an important question when analyzing bivariate relationship?

Accepted Answer

A) Is there a relationship between the variables? 
B) What is the nature of the relationship? 
C) How strong is the relationship? 
D) a,b,and c are important.

Question 15

Which of the following is used to examine relations among three or more qualitative variables simultaneously?

Accepted Answer

A) factor analysis 
B) log-linear analysis 
C) Bayesian procedure 
D) multivariate analysis of variance

Question 16

If the dependent variable is measured on an ordinal level that seriously departs from _____,then a nonparametric test might be pursued instead of a parametric test.

Accepted Answer

A) interval characteristics 
B) normality 
C) nominal characteristics 
D) none of these

Question 17

Given the information above,assume that the sample population was not normally distributed what statistical test would be appropriate?

Accepted Answer

A) Wilcoxon Signed-Rank test 
B) Mann-Whitney U test 
C) Spearman Rank order 
D) Kruskal-Wallis Test 
E) none of these

Question 18

If both variables are qualitative,but one or both are within-subjects in nature,_____ of the statistical tests we have considered can be used.

Accepted Answer

A) all 12 
B) several 
C) only one 
D) none

Question 19

The major factor to be weighed when deciding whether to use a parametric or a nonparametric test is the decision about what aspect of the _____ you want to compare groups on.

Accepted Answer

A) independent variable 
B) distribution 
C) sample

Question 20

If you set your alpha level at .01,nondirectional,and you are using a correlated t-test and have a total of 30 subjects what is your table or critical t ?

Accepted Answer

A) 2.045 
B) 2.048 
C) 2.756 
D) 1.699 
E) none of these

Exam 17: Overview and Extension: Statistical Tests for More Complex Designs

A nonparametric test should be pursued if there is a reason to believe that the _____ of the corresponding parametric test have been violated to the extent that the parametric test is not robust.

Dr.Jones found that there is a relationship between day time drowsiness and what time you wake up in the morning r(50)= .60,p<0.01.This relationship has a ____________________ correlation.

The use of Case II statistics is appropriate when a qualitative variable has many values and there are insufficient number of cases within each level to justify the analysis of means,medians,and the like.

If both variables are qualitative,but one or both are within-subjects in nature,the appropriate method of data analysis is the chi square test as discussed in Chapter 15..

Alternatives to the "null hypothesis testing approach" include:

In the example above it was found that the higher your GPA is the higher you scored on the SAT which indicates_____.

When both of the variables under study are quantitative and between-subjects in nature,the appropriate method of data analysis is the

If group means are the focus of an analysis where the independent variable is qualitative and the dependent variable is quantitative,which of the following are further considerations which must be given before the type of test is chosen?

A parametric procedure would not typically be used when a quantitative dependent variable has only two levels because the _____.

The Hotelling T² test is used when a multivariate analysis of variance is applied to

If ranks are the focus,then parametric methods should be pursued.

The goal of factor analysis is to determine if the correlations among a set of variables can be accounted for by one or more underlying dimensions,or factors.

Which of the following is not an important question when analyzing bivariate relationship?

Which of the following is used to examine relations among three or more qualitative variables simultaneously?

If the dependent variable is measured on an ordinal level that seriously departs from _____,then a nonparametric test might be pursued instead of a parametric test.

Given the information above,assume that the sample population was not normally distributed what statistical test would be appropriate?

If both variables are qualitative,but one or both are within-subjects in nature,_____ of the statistical tests we have considered can be used.

The major factor to be weighed when deciding whether to use a parametric or a nonparametric test is the decision about what aspect of the _____ you want to compare groups on.

If you set your alpha level at .01,nondirectional,and you are using a correlated t-test and have a total of 30 subjects what is your table or critical t ?