This preview shows pages 1–7. Sign up to view the full content.
Chapter 10 The
t
Test for
Two Independent Samples
PowerPoint Lecture Slides
Essentials of Statistics for the Behavioral
Sciences
Seventh Edition
by Frederick J Gravetter and Larry B. Wallnau
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document Chapter 10 Learning Outcomes
Concepts to review
•
Sample variance
(Chapter 4)
•
Standard error formulas (Chapter 7)
•
The
t
statistic (chapter 9)
–
Distribution of
t
values
–
df
for the
t
statistic
–
Estimated standard error
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document 10.1
Introduction to the
Independent Measures Design
•
Most research studies compare two or more
sets of data
–
Data from two completely separate groups,
or
between subjects
designs
–
Data from the same or related groups of
subjects or
repeated measures
designs
•
The first is studied in this chapter.
Figure 10.1
Independent subjects
research design
This preview has intentionally blurred sections. Sign up to view the full version.
View Full Document 10.2
The
t
statistic for an
independent measures design
•
Null hypothesis for independent measures test
•
Alternative hypothesis for the independent
measures test
Rounded Rectangle 4
0
:
2
1
0
=
 μ
μ
Η
0
:
2
1
1
≠
 μ
This is the end of the preview. Sign up
to
access the rest of the document.
This note was uploaded on 04/08/2011 for the course PSY 216 taught by Professor Cynthiaingle during the Spring '11 term at KCTCS.
 Spring '11
 CynthiaIngle
 Psychology

Click to edit the document details