AN INTRODUCTION TO STATISTICAL
CONCEPTS
,TABLE OF CONTENTS
1. INTRODUCTION
2. DATA REPRESENTATION
3. UNIVARIATE POPULATION PARAMETERS AND SAMPLE STATISTICS
4. THE NORMAL DISTRIBUTION AND STANDARD SCORES
5. INTRODUCTION TO PROBABILITY AND SAMPLE STATISTICS
6. INTRODUCTION TO HYPOTHESIS TESTING: INFERENCES ABOUT A SINGLE MEAN
7. INFERENCES ABOUT THE DIFFERENCE BETWEEN TWO MEANS
8. INFERENCES ABOUT PROPORTIONS
9. INFERENCES ABOUT VARIANCES
10. BIVARIATE MEASURES OF ASSOCIATION
11. ONE-FACTOR ANALYSIS OF VARIANCE – FIXED-EFFECTS MODEL
12. MULTIPLE COMPARISON PROCEDURES
13. FACTORIAL ANALYSIS OF VARIANCE – FIXED-EFFECTS MODEL
14. INTRODUCTION TO ANALYSIS OF COVARIANCE: THE ONE-FACTOR FIXED-EFFECTS
MODEL WITH A SINGLE COVARIATE
15. RANDOM- AND MIXED-EFFECTS ANALYSIS OF VARIANCE MODELS
16. HIERARCHICAL AND RANDOMIZED BLOCK ANALYSIS OF VARIANCE MODELS
17. SIMPLE LINEAR REGRESSION
18. MULTIPLE LINEAR REGRESSION
19. LOGISTIC REGRESSION
20. MEDIATION AND MODERATION
,CHAPTER 1: INTRODUCTION
Multiple-Choice
1. Jasmine Is Examining How Teenage Girls View Their Satisfaction With
Their Appearance. In Her Study, "Gender" Is Which Of The Following?
a. Constant
b. Variable
ANSWER: A
2. A Researcher Is Interested In Satisfaction Of First-Time Visitors At Disneyworld
And Thus Her Target Population Is First-Time Visitors. In This Study, “First-
Time Visitors” Is Which One Of The Following?
a. Constant
b. Variable
ANSWER: A
3. Belle Is Interested In Short Term Memory Of Children Who Are Enrolled In
Head Start Programs. Her Target Population Is Head Start Children. In This
Study, “Enrollment In Head Start” Is Which One Of The Following?
a. Constant
b. Variable
ANSWER: A
4. Aurora Is Conducting A Study On Sleep Habits Of Adolescents, With
Approximately Equal Numbers Of Boys And Girls Participating. In Her Study,
"Gender" Is Which Of The Following?
a. Constant
b. Variable
ANSWER: B
5. A Preschool Director Surveys Parents Of Four-Year-Old Children Regarding The
Types Of School Their Child Will Attend In Kindergarten. The Preschool Director
Finds That 85% Plan To Enroll Their Child In A Public School And The Remaining
Parents Will Enroll In Private Or Homeschool. “Type Of School,” In This
Scenario, Is Which One Of The Following?
a. Constant
b. Variable
, ANSWER: B
6. For Interval Level Variables, Which Of The Following Properties Does Not Apply?
a. Choco Mocha Is Five Units Lower Than Cocoa Mocha.
b. Choco Mocha Is Tastier Than Cocoa Mocha.
c. Choco Mocha Is Twice As Expensive As Cocoa Mocha.
d. Choco Mocha Is Different From Cocoa Mocha.
ANSWER: C
7. Which Of The Following Properties Is Appropriate For Ordinal, But Not For
Nominal Variables?
a. Choco Mocha Is $2 Greater Than Cocoa Mocha.
b. Choco Mocha Is Different From Cocoa Mocha.
c. Choco Mocha Is Tastier Than Cocoa Mocha.
d. Choco Mocha Is Twice As Expensive As Cocoa Mocha.
ANSWER: C
8. Lilo Has Sent Four Manuscripts To Journals To Be Considered For Review While
Stitch Has Sent Out Two. Which Scale Of Measurement Is Implied By The
Quantity Of Publications?
a. Nominal
b. Ordinal
c. Interval
d. Ratio
ANSWER: D
9. A Researcher Creates A Variable Called “Shampoo Type” That Categorizes
Shampoo Into Three Types: A) Herbal; B) Chemically Balanced; And C) Non-
Additive. What Type Of Measurement Scale Is “Shampoo Category?”
a. Nominal
b. Ordinal
c. Interval
d. Ratio
ANSWER: A