Question 1

Descriptive statistics allow you to draw inferences about populations using samples.

Accepted Answer

A) True 
 B)False  False

Question 2

One of the best ways to ensure the accuracy of the results of a study is through replication.

Accepted Answer

A) True 
 B)False  True

Question 3

Psychologists frequently use three branches of statistics.

Accepted Answer

A) True 
 B)False  False

Question 4

The purpose of _________ statistics is to allow you to draw conclusions about the population of interest from a sample.

Accepted Answer

A) inferential 
B) descriptive 
C) explanatory 
D) none of the above 
A) inferential 
B) descriptive 
C) explanatory 
D) none of the above

Question 5

Which of the following statements below inaccurately describes alpha?

Accepted Answer

A) The lower the p-value, the less likely the obtained differences are due to chance. 
B) The lower the p-value, the more likely the obtained differences are due to the IV. 
C) The lower the p-value, the more likely the obtained differences are due to chance. 
D) Both A and B. 
A) The lower the p-value, the less likely the obtained differences are due to chance. 
B) The lower the p-value, the more likely the obtained differences are due to the IV. 
C) The lower the p-value, the more likely the obtained differences are due to chance. 
D) Both A and B.

Question 6

A Bonferroni Correction is used to limit the possibility of making a __________.

Accepted Answer

A) Type I error. 
B) Type II error. 
C) Correct decision. 
D) None of the above. 
A) Type I error. 
B) Type II error. 
C) Correct decision. 
D) None of the above.

Question 7

If a researcher uses an ANOVA, which of the following pieces of information should you look for in the results?

Accepted Answer

A) missing data 
B) outliers 
C) shape of distribution 
D) all of the above 
A) missing data 
B) outliers 
C) shape of distribution 
D) all of the above

Question 8

Rejecting the null hypothesis when it is false is a decision error.

Accepted Answer

A) True 
 B)False

Question 9

The lower the obtained p-value, the more likely the obtained differences in the results are due to chance.

Accepted Answer

A) True 
 B)False

Question 10

T-tests and ANOVAs are examples of descriptive statistics.

Accepted Answer

A) True 
 B)False

Question 11

Of the following terms, which term fits least well?

Accepted Answer

A) level of significance 
B) alpha level 
C) assumption that the null is true 
D) assumption that the null is false 
A) level of significance 
B) alpha level 
C) assumption that the null is true 
D) assumption that the null is false

Question 12

Kathryn has completed a study and rejected the null hypothesis when it was false.Kathryn has made a _________.

Accepted Answer

A) correct decision. 
B) a type I error. 
C) a type II error. 
D) a type III error. 
A) correct decision. 
B) a type I error. 
C) a type II error. 
D) a type III error.

Question 13

The mean is the number in the middle of a data set.

Accepted Answer

A) True 
 B)False

Question 14

A one-sample t-test is used to determine whether or not two means are significantly different from one another.

Accepted Answer

A) True 
 B)False

Question 15

The lower the obtained p-value, the more likely the obtained differences in the results are due to the manipulation of the study.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is a measure of central tendency?

Accepted Answer

A) mean 
B) median 
C) mode 
D) all of the above 
A) mean 
B) median 
C) mode 
D) all of the above

Question 17

When conducting research, psychologists test the __________ hypothesis.

Accepted Answer

A) research 
B) null 
C) alternative 
D) directional 
A) research 
B) null 
C) alternative 
D) directional

Question 18

Which of the following statements is true?

Accepted Answer

A) Practical significance is more important than statistical significance. 
B) Statistical significance is more important than practical significance. 
C) Both practical and statistical significance are of equal importance. 
D) None of the above 
A) Practical significance is more important than statistical significance. 
B) Statistical significance is more important than practical significance. 
C) Both practical and statistical significance are of equal importance. 
D) None of the above

Question 19

The __________ is the number in the middle of the data set.

Accepted Answer

A) mean 
B) median 
C) mode 
D) variance 
A) mean 
B) median 
C) mode 
D) variance

Question 20

Which of the following statements about distributions is false?

Accepted Answer

A) In a normal distribution, the mean, median, and mode are all measures that equally describe the data set. 
B) In a skewed distribution, the mean, median, and mode are all measures that equally describe the data set. 
C) In a skewed distribution, not all of the measures of central tendency accurately describe the data set. 
D) In a skewed distribution, it can be beneficial to use the median instead of the mean. 
A) In a normal distribution, the mean, median, and mode are all measures that equally describe the data set. 
B) In a skewed distribution, the mean, median, and mode are all measures that equally describe the data set. 
C) In a skewed distribution, not all of the measures of central tendency accurately describe the data set. 
D) In a skewed distribution, it can be beneficial to use the median instead of the mean.

Descriptive statistics allow you to draw inferences about populations using samples.

One of the best ways to ensure the accuracy of the results of a study is through replication.

Psychologists frequently use three branches of statistics.

The purpose of _________ statistics is to allow you to draw conclusions about the population of interest from a sample.

Which of the following statements below inaccurately describes alpha?

A Bonferroni Correction is used to limit the possibility of making a __________.

If a researcher uses an ANOVA, which of the following pieces of information should you look for in the results?

Rejecting the null hypothesis when it is false is a decision error.

The lower the obtained p-value, the more likely the obtained differences in the results are due to chance.

T-tests and ANOVAs are examples of descriptive statistics.

Of the following terms, which term fits least well?

Kathryn has completed a study and rejected the null hypothesis when it was false.Kathryn has made a _________.

The mean is the number in the middle of a data set.

A one-sample t-test is used to determine whether or not two means are significantly different from one another.

The lower the obtained p-value, the more likely the obtained differences in the results are due to the manipulation of the study.

Which of the following is a measure of central tendency?

When conducting research, psychologists test the __________ hypothesis.

Which of the following statements is true?

The __________ is the number in the middle of the data set.

Which of the following statements about distributions is false?

Psychology As a Science

Goals and Methods of Psychology

Ethics

Nonexperimental Research Methods

Variables, Reliability, and Validity

Hypothesis Testing

Selection of Variables, Operational Definitions, and Measurements Issues

Selection and Assignment of Participants

Controls and Threats to Interval Validity

Between Subjects Designs

Within Subjects Designs

Factorial Designs

Singe Case Designs

Apa Style: Sixth Edition

Filters

Exam 14: Hypothesis Testing Revisited and Interpreting Results

Descriptive statistics allow you to draw inferences about populations using samples.

One of the best ways to ensure the accuracy of the results of a study is through replication.

Psychologists frequently use three branches of statistics.

The purpose of _________ statistics is to allow you to draw conclusions about the population of interest from a sample.

Which of the following statements below inaccurately describes alpha?

A Bonferroni Correction is used to limit the possibility of making a __________.

If a researcher uses an ANOVA, which of the following pieces of information should you look for in the results?

Rejecting the null hypothesis when it is false is a decision error.

The lower the obtained p-value, the more likely the obtained differences in the results are due to chance.

T-tests and ANOVAs are examples of descriptive statistics.

Of the following terms, which term fits least well?

Kathryn has completed a study and rejected the null hypothesis when it was false.Kathryn has made a _________.

The mean is the number in the middle of a data set.

A one-sample t-test is used to determine whether or not two means are significantly different from one another.

The lower the obtained p-value, the more likely the obtained differences in the results are due to the manipulation of the study.

Which of the following is a measure of central tendency?

When conducting research, psychologists test the __________ hypothesis.

Which of the following statements is true?

The __________ is the number in the middle of the data set.

Which of the following statements about distributions is false?

Psychology As a Science

Goals and Methods of Psychology

Ethics

Nonexperimental Research Methods

Variables, Reliability, and Validity

Hypothesis Testing

Selection of Variables, Operational Definitions, and Measurements Issues

Selection and Assignment of Participants

Controls and Threats to Interval Validity

Between Subjects Designs

Within Subjects Designs

Factorial Designs

Singe Case Designs

Apa Style: Sixth Edition

Filters