Question 1

What can you conclude if the obtained value of a test statistic exceeds the critical value?

Accepted Answer

A)  The null hypothesis cannot be rejected. 
B)  You made an error when calculating the test statistic. 
C)  The null hypothesis can be rejected. 
D)  Your obtained value is not statistically significant. 
A)  The null hypothesis cannot be rejected. 
B)  You made an error when calculating the test statistic. 
C)  The null hypothesis can be rejected. 
D)  Your obtained value is not statistically significant.

Question 2

One of the keys to successful operation of the central limit theorem is that the sample size must be ___________________.

Accepted Answer

A)  less than 20 
B)  greater than 30 
C)  greater than 40 
D)  greater than 50 
A)  less than 20 
B)  greater than 30 
C)  greater than 40 
D)  greater than 50

Question 3

If Professor Columbo is interested in the general trend of research findings regarding infant visual attention and childhood intelligence, what technique would be most amenable to his inquiry?

Accepted Answer

A)  Analysis of Variance ANOV
A)  
B)  Meta-analysis 
C)  Multiple Analysis of Variance MANOV
A)  
D)  Factor analysis 
A)  Analysis of Variance ANOV
A)  
B)  Meta-analysis 
C)  Multiple Analysis of Variance MANOV
A)  
D)  Factor analysis

Question 4

What is the correct order of steps in testing a hypothesis?

Accepted Answer

A)  statement of null hypothesis, setting level of risk, selection of test statistic 
B)  statement of null hypothesis, computation of test statistic, selection of test statistic 
C)  selection of test statistic, comparison of obtained value to critical value, computation of test statistic 
D)  selection of test statistic, computation of test statistic, statement of null hypothesis 
A)  statement of null hypothesis, setting level of risk, selection of test statistic 
B)  statement of null hypothesis, computation of test statistic, selection of test statistic 
C)  selection of test statistic, comparison of obtained value to critical value, computation of test statistic 
D)  selection of test statistic, computation of test statistic, statement of null hypothesis

Question 5

The level of significance is similar to which of the following?

Accepted Answer

A)  a Type I error 
B)  a Type II error 
C)  a bell curve 
D)  the null hypothesis 
A)  a Type I error 
B)  a Type II error 
C)  a bell curve 
D)  the null hypothesis

Question 6

If Dr. Robinson rejects the null hypothesis after observing a test statistic which exceeds the critical value at the .05 level, there is_____________________________________________.

Accepted Answer

A)  a 95% chance that the null hypothesis is actually true 
B)  a 5% chance that the null hypothesis is actually true 
C)  a 5% chance that the null hypothesis is actually false 
D)  no chance that the null hypothesis is actually true 
A)  a 95% chance that the null hypothesis is actually true 
B)  a 5% chance that the null hypothesis is actually true 
C)  a 5% chance that the null hypothesis is actually false 
D)  no chance that the null hypothesis is actually true

Question 7

What assumption forms the basis for inference?

Accepted Answer

A)  A researcher can select a sample that is similar to the population from which it came. 
B)  Null hypotheses can be proven to be false. 
C)  A researcher can select the level at which he/she is willing to risk Type I error. 
D)  The central limit theorem is false. 
A)  A researcher can select a sample that is similar to the population from which it came. 
B)  Null hypotheses can be proven to be false. 
C)  A researcher can select the level at which he/she is willing to risk Type I error. 
D)  The central limit theorem is false.

Question 8

Why would you do a meta-analytic study?

Accepted Answer

A meta-analytic study is conducted for s

Question 9

What is the statistical test for examining the significant difference between two means from two unrelated groups?

Accepted Answer

A)  t-test for dependent means 
B)  MANOVA 
C)  t-test for independent means 
D)  factor analysis 
A)  t-test for dependent means 
B)  MANOVA 
C)  t-test for independent means 
D)  factor analysis

Question 10

What is the difference between descriptive and inferential statistics?

Accepted Answer

Descriptive statistics and inferential s

Question 11

When a researcher draws conclusions about a population based on the results of a test on a sample, he or she is most likely using which of the following?

Accepted Answer

A)  inductive statistics 
B)  deductive statistics 
C)  descriptive statistics 
D)  inferential statistics 
A)  inductive statistics 
B)  deductive statistics 
C)  descriptive statistics 
D)  inferential statistics

Question 12

What are the steps involved in testing a hypothesis?

Accepted Answer

Testing a hypothesis typically involves

Question 13

The minimum or maximum value that one would expect the test statistic to yield if the null hypothesis is true is an example of which of the following?

Accepted Answer

A)  critical value 
B)  F value 
C)  t-test score 
D)  sampling mean 
A)  critical value 
B)  F value 
C)  t-test score 
D)  sampling mean

Question 14

When examining whether group differences occur on more than one dependent variable, what should be used?

Accepted Answer

A)  factor analysis 
B)  MANOVA 
C)  t-test for independent means 
D)  t-test for dependent means 
A)  factor analysis 
B)  MANOVA 
C)  t-test for independent means 
D)  t-test for dependent means

Question 15

Which of the following statements is true?

Accepted Answer

A)  Significance is better than meaningfulness. 
B)  Meaningfulness is better than significance. 
C)  Both significance and meaningfulness are equal in value. 
D)  Neither significance nor meaningfulness is important in a study. 
A)  Significance is better than meaningfulness. 
B)  Meaningfulness is better than significance. 
C)  Both significance and meaningfulness are equal in value. 
D)  Neither significance nor meaningfulness is important in a study.

Question 16

Which of the following statements regarding statistical significance is FALSE?

Accepted Answer

A)  The level of statistical significance and Type I error are the same thing. 
B)  Statistical significance is the degree of risk you are willing to take that you will reject a null when it is actually true. 
C)  When your results are found to be statistically significant, you can conclude that they will have a meaningful effect in the clinic. 
D)  The researcher can determine the level of statistical significance. 
A)  The level of statistical significance and Type I error are the same thing. 
B)  Statistical significance is the degree of risk you are willing to take that you will reject a null when it is actually true. 
C)  When your results are found to be statistically significant, you can conclude that they will have a meaningful effect in the clinic. 
D)  The researcher can determine the level of statistical significance.

Question 17

What factors decrease the likelihood of making a Type II error?

Accepted Answer

A Type II error, also known as a false n

What can you conclude if the obtained value of a test statistic exceeds the critical value?

One of the keys to successful operation of the central limit theorem is that the sample size must be ___________________.

If Professor Columbo is interested in the general trend of research findings regarding infant visual attention and childhood intelligence, what technique would be most amenable to his inquiry?

What is the correct order of steps in testing a hypothesis?

The level of significance is similar to which of the following?

If Dr. Robinson rejects the null hypothesis after observing a test statistic which exceeds the critical value at the .05 level, there is_____________________________________________.

What assumption forms the basis for inference?

Why would you do a meta-analytic study?

What is the statistical test for examining the significant difference between two means from two unrelated groups?

What is the difference between descriptive and inferential statistics?

When a researcher draws conclusions about a population based on the results of a test on a sample, he or she is most likely using which of the following?

What are the steps involved in testing a hypothesis?

The minimum or maximum value that one would expect the test statistic to yield if the null hypothesis is true is an example of which of the following?

When examining whether group differences occur on more than one dependent variable, what should be used?

Which of the following statements is true?

Which of the following statements regarding statistical significance is FALSE?

What factors decrease the likelihood of making a Type II error?

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Sampling and Generalizability

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Data Collection and Descriptive Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

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Exam 8: Introducing Inferential Statistics

What can you conclude if the obtained value of a test statistic exceeds the critical value?

One of the keys to successful operation of the central limit theorem is that the sample size must be ___________________.

If Professor Columbo is interested in the general trend of research findings regarding infant visual attention and childhood intelligence, what technique would be most amenable to his inquiry?

What is the correct order of steps in testing a hypothesis?

The level of significance is similar to which of the following?

If Dr. Robinson rejects the null hypothesis after observing a test statistic which exceeds the critical value at the .05 level, there is_____________________________________________.

What assumption forms the basis for inference?

Why would you do a meta-analytic study?

What is the statistical test for examining the significant difference between two means from two unrelated groups?

What is the difference between descriptive and inferential statistics?

When a researcher draws conclusions about a population based on the results of a test on a sample, he or she is most likely using which of the following?

What are the steps involved in testing a hypothesis?

The minimum or maximum value that one would expect the test statistic to yield if the null hypothesis is true is an example of which of the following?

When examining whether group differences occur on more than one dependent variable, what should be used?

Which of the following statements is true?

Which of the following statements regarding statistical significance is FALSE?

What factors decrease the likelihood of making a Type II error?

The Role and Importance of Research

The Research Process: Coming to Terms

A: Selecting a Problem and Reviewing the Research

B: Ethics: the Basic Principles

Sampling and Generalizability

Measurement, Reliability, and Validity

Methods of Measuring Behavior

Data Collection and Descriptive Statistics

Nonexperimental Research: Descriptive and Correlational Methods

Nonexperimental Research: Qualitative Methods

Pre- and True Experimental Research Methods

Quasi-Experimental Research: a Close Cousin to Experimental Research

Writing a Research Proposal

Writing a Research Manuscript

Filters