Question 1

What is the mean value for participants' age 12 years old?

Accepted Answer

A)  7.0 
B)  5.3 
C)  3.6 
D)  6.0 
A)  7.0 
B)  5.3 
C)  3.6 
D)  6.0 A

Question 2

Which descriptive statistic identifies the middle score in a data set?

Accepted Answer

A)  Range 
B)  Median 
C)  Mode 
D)  Mean 
A)  Range 
B)  Median 
C)  Mode 
D)  Mean B

Question 3

What is the mode for the 8 year old participants?

Accepted Answer

A)  4 
B)  5 
C)  6 
D)  8 
A)  4 
B)  5 
C)  6 
D)  8 B

Question 4

Which of the following is a disadvantage of using the mean as a measure of central tendency?

Accepted Answer

A)  Influenced by outlying scores 
B)  Resistant to sampling differences 
C)  Cannot be used with parametric statistics 
D)  Only calculated from one data point 
A)  Influenced by outlying scores 
B)  Resistant to sampling differences 
C)  Cannot be used with parametric statistics 
D)  Only calculated from one data point

Question 5

Imagine you have calculated the variance for a dataset and the result is 9. How would you then calculate the standard deviation?

Accepted Answer

A)  92 
B)  9/N 
C)  √9 
D)  9/N-1 
A)  92 
B)  9/N 
C)  √9 
D)  9/N-1

Question 6

What is the variance for all of the participants?

Accepted Answer

A)  2.2 
B)  2.8 
C)  1.0 
D)  4.9 
A)  2.2 
B)  2.8 
C)  1.0 
D)  4.9

Question 7

If a dataset has a large amount of low scoring data points and a small amount of high scoring outliers, how would you describe the distribution of the dataset?

Accepted Answer

A)  Positively skewed 
B)  Negatively skewed 
C)  Leptokurtic 
D)  Platykurtic 
A)  Positively skewed 
B)  Negatively skewed 
C)  Leptokurtic 
D)  Platykurtic

Question 8

If you were to adopt an alpha level of .005, which of the following p values would be significant?

Accepted Answer

A)  p < .001 
B)  p < .010 
C)  p < .025 
D)  p < .050 
A)  p < .001 
B)  p < .010 
C)  p < .025 
D)  p < .050

Question 9

The degrees of freedom in an analysis are based on…

Accepted Answer

A)  The variance in the dataset 
B)  The central tendency in the dataset 
C)  The number of participants 
D)  The alpha level you adopt 
A)  The variance in the dataset 
B)  The central tendency in the dataset 
C)  The number of participants 
D)  The alpha level you adopt

Question 10

What is the median value for all of the participants?

Accepted Answer

A)  5 
B)  6 
C)  5.5 
D)  8 
A)  5 
B)  6 
C)  5.5 
D)  8

Question 11

To calculate a z score, you need which three values?

Accepted Answer

A)  A participant's raw score, a participant's standard deviation and the mean for the whole dataset. 
B)  A participant's raw score, the N for the whole dataset and the standard deviation from the whole dataset. 
C)  A participant's raw score, the mean for the whole dataset and the standard deviation from the whole dataset. 
D)  A participant's raw score, the mean for the whole dataset and the N for the whole dataset. 
A)  A participant's raw score, a participant's standard deviation and the mean for the whole dataset. 
B)  A participant's raw score, the N for the whole dataset and the standard deviation from the whole dataset. 
C)  A participant's raw score, the mean for the whole dataset and the standard deviation from the whole dataset. 
D)  A participant's raw score, the mean for the whole dataset and the N for the whole dataset.

Question 12

If you were to use an alpha level of .025, what is the chance of having committed a Type I Error?

Accepted Answer

A)  25% 
B)  .25% 
C)  .025% 
D)  2.5% 
A)  25% 
B)  .25% 
C)  .025% 
D)  2.5%

Question 13

What is the standard deviation for the participants who are 8 years old?

Accepted Answer

A)  1.67 
B)  2.80 
C)  1.00 
D)  2.21 
A)  1.67 
B)  2.80 
C)  1.00 
D)  2.21

What is the mean value for participants' age 12 years old?

Which descriptive statistic identifies the middle score in a data set?

What is the mode for the 8 year old participants?

Which of the following is a disadvantage of using the mean as a measure of central tendency?

Imagine you have calculated the variance for a dataset and the result is 9. How would you then calculate the standard deviation?

What is the variance for all of the participants?

If a dataset has a large amount of low scoring data points and a small amount of high scoring outliers, how would you describe the distribution of the dataset?

If you were to adopt an alpha level of .005, which of the following p values would be significant?

The degrees of freedom in an analysis are based on…

What is the median value for all of the participants?

To calculate a z score, you need which three values?

If you were to use an alpha level of .025, what is the chance of having committed a Type I Error?

What is the standard deviation for the participants who are 8 years old?

An Overview of How to Do Research

How to Design a Psychological Study: the Basics of Methodology

How to Find, Read, Write and Think About Research Papers

Qualitative Methods in Psychological Research

How to Design an Experiment

How Can I Tell If Scores Differ Between Two Groups Independent T Test

How Can I Tell If Scores Differ Between Two Conditions Repeated T Test

How Can I Tell If Scores Differ Between Three or More Groups One-Way Independent Measures Anova

How to Design a Correlational Study

How Can I Tell If Two Variables Are Correlated Pearsons Correlation

How Can I Tell If One Variable Can Predict Another Simple Linear Regression

When and Why Might I Need to Use Non-Parametric Statistics

Do My Data Fit the Expected Frequencies Chi Square

Are There Differences Between Groups or Conditions Mann-Whitney U and Wilcoxon Signed Rank Tests

Is There a Relationship Between Two Variables Spearmans Correlation

Which Statistical Test Should I Use

Moving Beyond the Basics of Research and Analysis: How Do I Understand More Complicated Research Designs

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Exam 5: The Basics of Statistical Analysis

What is the mean value for participants' age 12 years old?

Which descriptive statistic identifies the middle score in a data set?

What is the mode for the 8 year old participants?

Which of the following is a disadvantage of using the mean as a measure of central tendency?

Imagine you have calculated the variance for a dataset and the result is 9. How would you then calculate the standard deviation?

What is the variance for all of the participants?

If a dataset has a large amount of low scoring data points and a small amount of high scoring outliers, how would you describe the distribution of the dataset?

If you were to adopt an alpha level of .005, which of the following p values would be significant?

The degrees of freedom in an analysis are based on…

What is the median value for all of the participants?

To calculate a z score, you need which three values?

If you were to use an alpha level of .025, what is the chance of having committed a Type I Error?

What is the standard deviation for the participants who are 8 years old?

An Overview of How to Do Research

How to Design a Psychological Study: the Basics of Methodology

How to Find, Read, Write and Think About Research Papers

Qualitative Methods in Psychological Research

How to Design an Experiment

How Can I Tell If Scores Differ Between Two Groups Independent T Test

How Can I Tell If Scores Differ Between Two Conditions Repeated T Test

How Can I Tell If Scores Differ Between Three or More Groups One-Way Independent Measures Anova

How to Design a Correlational Study

How Can I Tell If Two Variables Are Correlated Pearsons Correlation

How Can I Tell If One Variable Can Predict Another Simple Linear Regression

When and Why Might I Need to Use Non-Parametric Statistics

Do My Data Fit the Expected Frequencies Chi Square

Are There Differences Between Groups or Conditions Mann-Whitney U and Wilcoxon Signed Rank Tests

Is There a Relationship Between Two Variables Spearmans Correlation

Which Statistical Test Should I Use

Moving Beyond the Basics of Research and Analysis: How Do I Understand More Complicated Research Designs

Filters