Nolan, SBS 2e Chapter 5 Quiz 2 -
9/15/15, 5:17 PM
Nolan, SBS 2e Chapter 5 Quiz 2 completed
Total score: 15 out of 15, 100%
1. A weight-loss guru is offering free exercise training and diet plans for people who want to participate in
her program. She finds
*Ordinal variables have rankings as their values.
*Ratio variables have numbers with equal distances between consecutive quantitie
*Nominal variables have categories, or names, as their values.
-Before using a measure in a study, a researcher sh
S2Mx: Variance version of Standard error (for a sample for each sample)
S2My: Variance version of Standard error (for a sample-for each sample)
THESE ARE ADDED TOGETHER TO GET : S2difference
S2pooled: Pooled Variance
-weighted average of 2 variance estima
Regression Ch 16 book notes and questions
Q: Analytical methods in this chapter build on _ to help us to create _ tools.
A: correlation; prediction
Q: We learn how to use1 scale variable to:
A: Predict the outcome on a second scale variable
Chapter 3 iClicker Questions
1. Since there are many ways to lie with statistics and graphs, it is important
to become a knowledgeable consumer of research. If a college professor is
rated on a scale from 1-5 (1= okay, 2= fair, 3= good, 4= very good, 5=
Psych 2220, Ch.2-3
Lecture slides on Carmen
Ill typically plan to post copies of lecture slides onto
Carmen within a week after the lecture content in class.
You can (and should):
Actively read the textbook content before
PSYCH 2220 EXAM 1
Format: mostly multiple choice, about 30 questions.
Time: 55 minutes during Mondays typical class time.
Location: here in class.
2. Know all the concepts.
3. Know how to do all the math.
4. Choose the correct answ
Welcome to Data
Analysis for Psychology!
Instructor: Joseph C. Roberts, Ph.D.
Syllabus & Course Details
Textbook: Nolan & Heinzen, (2014). Statistics for the
Behavioral Sciences, 3rd ed. Worth Publishers.
Comments on textbooks: older edi
Ch.5: Sampling &
Methods of Selecting a Sample
Reminder: A sample is a subset of some population.
The sample is observable, where the population may not be.
To make a valid inference about the population, the sample must be
Q: The building blocks of inferential statistics:
(a) the characteristics of the normal curve;
(b) how to use the normal curve to standardize any variable by using a tool called
the z score; and
(c) the central limit theorem, which, coupled
Grouped frequency tables
Stem and Leaf Plot
Shapes of Distributions
Normal vs. skewed
Four different ways to visually describe just