Question 1

Often participants don't respond to every item on a questionnaire and the researcher is left with __________.

Accepted Answer

The answer of Often participants don't respond to every item...

Question 2

One can visually check for skewness by looking for:

Accepted Answer

A) long tails going off to the right 
B) long tails going off to the left 
C) separated scores in the histograms 
D) all of the above 
A) long tails going off to the right 
B) long tails going off to the left 
C) separated scores in the histograms 
D) all of the above

Question 3

After carrying out your plan for the main statistical analyses, you may want to consider conducting a(n):

Accepted Answer

A) factor analysis 
B) exploratory analysis 
C) power analysis 
D) hypothetical analysis 
A) factor analysis 
B) exploratory analysis 
C) power analysis 
D) hypothetical analysis

Question 4

Most research reports in the behavioral and social sciences include the following main sections:
(1)__________ , (2)__________ , (3)__________ , and (4)__________

Accepted Answer

Introducti

Question 5

In a between-subjects design __________ people are in each group.

Accepted Answer

A) different 
B) the same 
C) more than 30 
D) equal numbers of 
A) different 
B) the same 
C) more than 30 
D) equal numbers of

Question 6

In a __________ design, the same people will be in each group (e.g., each participant will read one story with negative content and another story with positive content).

Accepted Answer

repeated-m

Question 7

If your planned study has power below 80%, you should first consider:

Accepted Answer

A) increasing the size of the samples 
B) raising the study's level of significance 
C) using the true population variance 
D) treating the two samples as one sample 
A) increasing the size of the samples 
B) raising the study's level of significance 
C) using the true population variance 
D) treating the two samples as one sample

Question 8

A statistical procedure involving more than one criterion or outcome variable is called a:

Accepted Answer

A) univariate test 
B) multivariate test 
C) rank-order test 
D) chi-square test 
A) univariate test 
B) multivariate test 
C) rank-order test 
D) chi-square test

Question 9

One should use a chi-square test to study the change in distribution of preferred brand of toothpaste from before to after a new advertising campaign. (True or False)

Accepted Answer

A) True 
 B)False

Question 10

Before conducting statistical analyses, what properties of the data should a researcher check and why? How should a researcher handle problematic data issues that arise?

Accepted Answer

Answers to this question will vary but s

Question 11

Consider a study comparing the effects of different encoding methods (i.e., visual and auditory)on later retention of information. This study focuses on the arrange memory performance for each encoding modality; thus, this is a study comparing __________.

Accepted Answer

A) variance variables 
B) the relationship between variables 
C) the distribution of difference scores 
D) the standard deviation of variables 
A) variance variables 
B) the relationship between variables 
C) the distribution of difference scores 
D) the standard deviation of variables

Question 12

If you wish to predict the likelihood of developing breast cancer from a combination of information about genes, environment, and lifestyle the appropriate analysis would be a:

Accepted Answer

A) t test 
B) chi square 
C) ANOVA 
D) multiple regression 
A) t test 
B) chi square 
C) ANOVA 
D) multiple regression

Question 13

What is meant by the phrase "data screening"?

Accepted Answer

A) typing all scores into the database 
B) setting up the SPSS spreadsheet 
C) labeling one's variables 
D) checking data for accuracy and missing values 
A) typing all scores into the database 
B) setting up the SPSS spreadsheet 
C) labeling one's variables 
D) checking data for accuracy and missing values

Question 14

When writing up the results of a research study, most of the results of the statistical analyses will go in the Results section of the paper, although some information about the study participants is usually given in the __________ section.

Accepted Answer

The answer of When writing up the results of a...

Question 15

All of the following are appropriate and common ways to handle extreme scores EXCEPT:

Accepted Answer

A) exclude the participant from the analysis 
B) use a rank-order test 
C) use a t test for dependent means 
D) recode the extreme score so that it is just slightly higher than the next highest score 
A) exclude the participant from the analysis 
B) use a rank-order test 
C) use a t test for dependent means 
D) recode the extreme score so that it is just slightly higher than the next highest score

Question 16

Before embarking on a new study, experienced researchers carefully plan the statistical method(s)they will use when the study is complete. Why is it important to carry out this step?

Accepted Answer

A) To ensure that there are available and appropriate methods to use when the study is done 
B) To determine how many participants you will need 
C) To determine the power of your planned study 
D) All of the above 
A) To ensure that there are available and appropriate methods to use when the study is done 
B) To determine how many participants you will need 
C) To determine the power of your planned study 
D) All of the above

Question 17

The main cause of extreme skewness is:

Accepted Answer

A) outliers 
B) bimodal distributions 
C) rectangular distributions 
D) average scores 
A) outliers 
B) bimodal distributions 
C) rectangular distributions 
D) average scores

Question 18

What are some important things to keep in mind during the data-gathering process that will make the statistical analyses go smoothly?

Accepted Answer

Answers to this question will vary but s

Question 19

You study three groups of students (normal, learning disability, and attention-deficit disorder)and measure performance on four outcome variables (four different reading ability tests). This type of research design would require __________.

Accepted Answer

multivariate tests;

Question 20

A common way to handle missing data when there are only a few missing values and the pattern seems more or less random is to:

Accepted Answer

A) substitute the mode of everyone else's score on that variable for each missing value 
B) substitute the mean of everyone else's score on that variable for each missing value 
C) delete the individual from the database 
D) delete that particular variable from the database 
A) substitute the mode of everyone else's score on that variable for each missing value 
B) substitute the mean of everyone else's score on that variable for each missing value 
C) delete the individual from the database 
D) delete that particular variable from the database

Often participants don't respond to every item on a questionnaire and the researcher is left with __________.

One can visually check for skewness by looking for:

After carrying out your plan for the main statistical analyses, you may want to consider conducting a(n):

Most research reports in the behavioral and social sciences include the following main sections: (1) , (2) , (3) , and (4)

In a between-subjects design __________ people are in each group.

In a __________ design, the same people will be in each group (e.g., each participant will read one story with negative content and another story with positive content).

If your planned study has power below 80%, you should first consider:

A statistical procedure involving more than one criterion or outcome variable is called a:

One should use a chi-square test to study the change in distribution of preferred brand of toothpaste from before to after a new advertising campaign. (True or False)

Before conducting statistical analyses, what properties of the data should a researcher check and why? How should a researcher handle problematic data issues that arise?

Consider a study comparing the effects of different encoding methods (i.e., visual and auditory)on later retention of information. This study focuses on the arrange memory performance for each encoding modality; thus, this is a study comparing __________.

If you wish to predict the likelihood of developing breast cancer from a combination of information about genes, environment, and lifestyle the appropriate analysis would be a:

What is meant by the phrase "data screening"?

When writing up the results of a research study, most of the results of the statistical analyses will go in the Results section of the paper, although some information about the study participants is usually given in the __________ section.

All of the following are appropriate and common ways to handle extreme scores EXCEPT:

Before embarking on a new study, experienced researchers carefully plan the statistical method(s)they will use when the study is complete. Why is it important to carry out this step?

The main cause of extreme skewness is:

What are some important things to keep in mind during the data-gathering process that will make the statistical analyses go smoothly?

You study three groups of students (normal, learning disability, and attention-deficit disorder)and measure performance on four outcome variables (four different reading ability tests). This type of research design would require __________.

A common way to handle missing data when there are only a few missing values and the pattern seems more or less random is to:

Displaying the Order in a Group of Numbers Using Tables and Graphs

The Mean, Variance, Standard Deviation, and Z Scores

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Chi-Square Tests and Strategies When Population Distributions Are Not Normal

Filters

Exam 12: Applying Statistical Methods in Your Own Research Project

Often participants don't respond to every item on a questionnaire and the researcher is left with __________.

One can visually check for skewness by looking for:

After carrying out your plan for the main statistical analyses, you may want to consider conducting a(n):

Most research reports in the behavioral and social sciences include the following main sections: (1)__________ , (2)__________ , (3)__________ , and (4)__________

In a between-subjects design __________ people are in each group.

In a __________ design, the same people will be in each group (e.g., each participant will read one story with negative content and another story with positive content).

If your planned study has power below 80%, you should first consider:

A statistical procedure involving more than one criterion or outcome variable is called a:

One should use a chi-square test to study the change in distribution of preferred brand of toothpaste from before to after a new advertising campaign. (True or False)

Before conducting statistical analyses, what properties of the data should a researcher check and why? How should a researcher handle problematic data issues that arise?

Consider a study comparing the effects of different encoding methods (i.e., visual and auditory)on later retention of information. This study focuses on the arrange memory performance for each encoding modality; thus, this is a study comparing __________.

If you wish to predict the likelihood of developing breast cancer from a combination of information about genes, environment, and lifestyle the appropriate analysis would be a:

What is meant by the phrase "data screening"?

When writing up the results of a research study, most of the results of the statistical analyses will go in the Results section of the paper, although some information about the study participants is usually given in the __________ section.

All of the following are appropriate and common ways to handle extreme scores EXCEPT:

Before embarking on a new study, experienced researchers carefully plan the statistical method(s)they will use when the study is complete. Why is it important to carry out this step?

The main cause of extreme skewness is:

What are some important things to keep in mind during the data-gathering process that will make the statistical analyses go smoothly?

You study three groups of students (normal, learning disability, and attention-deficit disorder)and measure performance on four outcome variables (four different reading ability tests). This type of research design would require __________.

A common way to handle missing data when there are only a few missing values and the pattern seems more or less random is to:

Displaying the Order in a Group of Numbers Using Tables and Graphs

The Mean, Variance, Standard Deviation, and Z Scores

Correlation and Prediction

Some Key Ingredients for Inferential Statistics: the Normal Curve, Sample Versus Population, and Probability

Introduction to Hypothesis Testing

Hypothesis Tests With Means of Samples

Making Sense of Statistical Significance: Effect Size and Statistical Power

Introduction to the T Test: Single Sample and Dependent Means

The T Test for Independent Means

Introduction to the Analysis of Variance

Chi-Square Tests and Strategies When Population Distributions Are Not Normal

Filters

Most research reports in the behavioral and social sciences include the following main sections: (1) , (2) , (3) , and (4)