Question 1

Unexplained error or variance may be due to_________.

Accepted Answer

disturbanc

Question 2

A nullified score

Accepted Answer

A) results from subtracting 1 unit from each score in a particular group. 
B) results from adding 1 unit to each score in a particular group. 
C) results from removing the influence of the independent variable on the dependent variable. 
D) is another name for the unexplained variance of a group. 
A) results from subtracting 1 unit from each score in a particular group. 
B) results from adding 1 unit to each score in a particular group. 
C) results from removing the influence of the independent variable on the dependent variable. 
D) is another name for the unexplained variance of a group.

Question 3

What does a t value represent?

Accepted Answer

A t value represents how many estimated

Question 4

The alternative hypothesis states that there is a relationship between the independent variable and the dependent variable.

Accepted Answer

A) True 
 B)False

Question 5

The independent groups t test is quite robust to the assumption of homogeneity of variance when the _____ are _____.

Accepted Answer

A) variances;unequal 
B) sample sizes;equal 
C) sample sizes;fairly discrepant 
D) means;independent 
A) variances;unequal 
B) sample sizes;equal 
C) sample sizes;fairly discrepant 
D) means;independent

Question 6

The calculation of eta-squared _____ when the statistical test is nonsignificant.

Accepted Answer

A) can be useful 
B) is not necessary 
C) is misleading 
D) is not possible 
A) can be useful 
B) is not necessary 
C) is misleading 
D) is not possible

Question 7

If we assume the null hypothesis is true in a nondirectional test,then ì1 and ì2 will be equal,so ì1 - ì2 will equal 0.

Accepted Answer

A) True 
 B)False

Question 8

The power of a statistical test is influenced by ____.

Accepted Answer

A) the strength of the relationship between the two variables in population 
B) the sample sizes 
C) the alpha level 
D) all of these 
A) the strength of the relationship between the two variables in population 
B) the sample sizes 
C) the alpha level 
D) all of these

Question 9

If the observed t value exceeds the critical t value,then the difference between the sample means is most likely ____.

Accepted Answer

A) attributable to sampling error 
B) nonsignificant 
C) not attributable to sampling error 
D) not very reliable 
A) attributable to sampling error 
B) nonsignificant 
C) not attributable to sampling error 
D) not very reliable

Unexplained error or variance may be due to_________.

A nullified score

What does a t value represent?

The alternative hypothesis states that there is a relationship between the independent variable and the dependent variable.

The independent groups t test is quite robust to the assumption of homogeneity of variance when the _ are _.

The calculation of eta-squared _____ when the statistical test is nonsignificant.

If we assume the null hypothesis is true in a nondirectional test,then ì₁ and ì₂ will be equal,so ì₁ - ì₂ will equal 0.

The power of a statistical test is influenced by ____.

If the observed t value exceeds the critical t value,then the difference between the sample means is most likely ____.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

Exam 10: Independent Groups T-Test

Unexplained error or variance may be due to_________.

A nullified score

What does a t value represent?

The alternative hypothesis states that there is a relationship between the independent variable and the dependent variable.

The independent groups t test is quite robust to the assumption of homogeneity of variance when the _____ are _____.

The calculation of eta-squared _____ when the statistical test is nonsignificant.

If we assume the null hypothesis is true in a nondirectional test,then ì1 and ì2 will be equal,so ì1 - ì2 will equal 0.

The power of a statistical test is influenced by ____.

If the observed t value exceeds the critical t value,then the difference between the sample means is most likely ____.

Introduction and Mathematical Preliminaries

Frequency and Probability Distributions

Measures of Central Tendency and Variability

Percentiles,percentile Ranks,standard Scores,and the Normal Distribution

Pearson Correlation and Regression: Descriptive Aspects

Probability

Estimation and Sampling Distributions

Hypothesis Testing: Inferences About a Single Mean

Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships

Correlated Groups T-Test

One-Way Repeated Measures Analysis of Variance

Pearson Correlation and Regression: Inferential Aspects

Chi-Square Test

Nonparametric Statistics

Two-Way Between-Subjects Analysis of Variance

Overview and Extension: Statistical Tests for More Complex Designs

Filters

The independent groups t test is quite robust to the assumption of homogeneity of variance when the _ are _.

If we assume the null hypothesis is true in a nondirectional test,then ì₁ and ì₂ will be equal,so ì₁ - ì₂ will equal 0.