Question 1

Which of the following computes the exact probability of outcomes in a 2 × 2 table?

Accepted Answer

A) Wilcoxon rank test 
B) Fisher's exact test 
C) the sign test 
D) Kruskal-Wallis one-way ANOVA 
A) Wilcoxon rank test 
B) Fisher's exact test 
C) the sign test 
D) Kruskal-Wallis one-way ANOVA

Question 2

Statistics that are not governed by distributions are referred to as _______ statistics.

Accepted Answer

A) parametric 
B) nonparametric 
C) population 
D) nondistribution 
A) parametric 
B) nonparametric 
C) population 
D) nondistribution

Question 3

The chi-square statistic measures the difference between the observed data and what would be expected by chance alone.

Accepted Answer

A) True 
 B)False

Question 4

Write a sample research question where the Fisher's exact test would be the most appropriate statistical technique to use.

Accepted Answer

What is the exact li

Question 5

In the result , what is 8.4?

Accepted Answer

A) the obtained value 
B) the critical value 
C) the significance level 
D) the degrees of freedom 
A) the obtained value 
B) the critical value 
C) the significance level 
D) the degrees of freedom

Question 6

Which of the following nonparametric tests is used to answer the following research question: "Is preschool twice as effective as no preschool experience for helping develop children's language skills?"

Accepted Answer

A) McNemar 
B) Fisher's exact 
C) Chi-square one-sample test 
D) Wilcoxon rank test 
A) McNemar 
B) Fisher's exact 
C) Chi-square one-sample test 
D) Wilcoxon rank test

Question 7

The P in the null hypothesis represents the _______ of occurrences in any one category.

Accepted Answer

A) multiplication 
B) subtraction 
C) percentage 
D) addition 
A) multiplication 
B) subtraction 
C) percentage 
D) addition

Question 8

In order to meet the sample assumption associated with parametric statistics, how many subjects do you need?

Accepted Answer

A) 20 
B) 30 
C) 50 
D) 100 
A) 20 
B) 30 
C) 50 
D) 100

Question 9

When conducting a chi-square test, the categories of your variable(s) must be _______.

Accepted Answer

A) mutually exclusive 
B) dependent 
C) less than five in total 
D) more than three in total 
A) mutually exclusive 
B) dependent 
C) less than five in total 
D) more than three in total

Question 10

Which of the following nonparametric tests is used to determine if scores from a sample came from a specified population?

Accepted Answer

A) Mann-Whitney U 
B) Fisher's exact 
C) Kolmogorov-Smirnov 
D) Spearman rank 
A) Mann-Whitney U 
B) Fisher's exact 
C) Kolmogorov-Smirnov 
D) Spearman rank

Question 11

A two-sample chi-square focuses on whether two or more variables are significantly related, or dependent.

Accepted Answer

A) True 
 B)False

Question 12

The critical value must be compared against which of the following?

Accepted Answer

A) test value 
B) obtained value 
C) expected value 
D) observed value 
A) test value 
B) obtained value 
C) expected value 
D) observed value

Question 13

What is the level of risk associated with rejecting a true null hypothesis called?

Accepted Answer

A) Type I error 
B) Type II error 
C) Type III error 
D) power 
A) Type I error 
B) Type II error 
C) Type III error 
D) power

Question 14

The one-sample chi-square test is also called goodness of fit.

Accepted Answer

A) True 
 B)False

Question 15

The one-sample chi-square focuses on the distribution of a single variable.

Accepted Answer

A) True 
 B)False

Question 16

In calculating a one-sample chi-square test, if you had 7 degrees of freedom, your variable would have _______ categories.

Accepted Answer

A) 8 
B) 9 
C) 7 
D) 6 
A) 8 
B) 9 
C) 7 
D) 6

Question 17

Which of the following compares the overall difference between two or more independent samples?

Accepted Answer

A) Kruskal-Wallis one-way ANOVA 
B) the sign test 
C) Wilcoxon rank test 
D) Mann-Whitney U 
A) Kruskal-Wallis one-way ANOVA 
B) the sign test 
C) Wilcoxon rank test 
D) Mann-Whitney U

Question 18

Parametric statistics are preferred when you are analyzing categorical variables.

Accepted Answer

A) True 
 B)False

Question 19

Give an example of a research situation where the one-sample chi-square test would be the most appropriate statistical technique to use.

Accepted Answer

A researcher wants to answer the questio

Question 20

If there is almost no difference between what is observed and what is expected, your chi-square value will be _______.

Accepted Answer

A) close to 0 
B) close to 1 
C) close to −1 
D) impossible to determine 
A) close to 0 
B) close to 1 
C) close to −1 
D) impossible to determine

Exam 17: What to Do When Youre Not Normal: CHI-Square and Some Other Nonparametric Tests

Which of the following computes the exact probability of outcomes in a 2 × 2 table?

Statistics that are not governed by distributions are referred to as _______ statistics.

The chi-square statistic measures the difference between the observed data and what would be expected by chance alone.

Write a sample research question where the Fisher's exact test would be the most appropriate statistical technique to use.

In the result , what is 8.4?

Which of the following nonparametric tests is used to answer the following research question: "Is preschool twice as effective as no preschool experience for helping develop children's language skills?"

The P in the null hypothesis represents the _______ of occurrences in any one category.

In order to meet the sample assumption associated with parametric statistics, how many subjects do you need?

When conducting a chi-square test, the categories of your variable(s) must be _______.

Which of the following nonparametric tests is used to determine if scores from a sample came from a specified population?

A two-sample chi-square focuses on whether two or more variables are significantly related, or dependent.

The critical value must be compared against which of the following?

What is the level of risk associated with rejecting a true null hypothesis called?

The one-sample chi-square test is also called goodness of fit.

The one-sample chi-square focuses on the distribution of a single variable.

In calculating a one-sample chi-square test, if you had 7 degrees of freedom, your variable would have _______ categories.

Which of the following compares the overall difference between two or more independent samples?

Parametric statistics are preferred when you are analyzing categorical variables.

Give an example of a research situation where the one-sample chi-square test would be the most appropriate statistical technique to use.

If there is almost no difference between what is observed and what is expected, your chi-square value will be _______.

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