Multiple Comparisons
The Tukey Method (also called Tukeys Honest Significant Difference, or HSD)
The Tukey Method is a way of comparing all possible pairs of group means. The way this
method works is that we start by listing all means in order from larges

Factorial ANOVA: Important Concepts and Equations
Keep in mind that, for this class, we will mainly only work with balanced designs (i.e., the
sample sizes for each cell will be equal).
This is the notation we will be using. Be sure you are comfortable wi

Factorial ANOVA: Important Concepts and Equations
Keep in mind that, for this class, we will mainly only work with balanced designs (i.e., the
sample sizes for each cell will be equal).
This is the notation we will be using. Be sure you are comfortable wi

EDPSY 406: Applied Statistical Inference for the Behavioral Sciences
M W F 4:40-5:30 105 Chambers
The Pennsylvania State University
Spring 2012
Instructor: Michael Cook
Office: 102 Verizon Building
Email: mac397@psu.edu
Office Hours: M 3-4, R 2-3, by appo

EDPSY 406 Pretest
Name:_
Directions: Please answer each of the following questions as completely as possible.
Remember, this is not a graded test! The purpose of this test is just to see what you know as you
enter this course.
#1.A sample of five people w

EDPSY 406 Pretest
Name:_
Directions: Please answer each of the following questions as completely as possible.
Remember, this is not a graded test! The purpose of this test is just to see what you know as you
enter this course.
#1.A sample of five people w

EDPSY 406
Quiz #4
Name:_
A local elementary school has been looking at several new reading comprehension programs, as
standardized test scores have revealed a deficiency in reading comprehension skills at this
particular elementary school. The school has

EDPSY 406 Review Sheet
The following is a list of the major concepts that you should be familiar with for the
midterm exam on Wednesday, 2/29. While this is not an all-inclusive list, this should at
least help guide your studying. If you have any question

EDPSY 406
Quiz #3
Name:_
#1. Yao, a promising educational researcher, believes that, at a certain high school, socioeconomic status (SES) of students families has a significant impact on GPA. To test this theory,
Yao collected data on students GPA and the

EDPSY 406
Lab #3
Name:_Yu Hu_
This portion of HW #3 is worth 10 out of the 25 possible points. Please attach relevant
SPSS output with your responses to each of the questions. Questions that are answered
with output only and no explanation will receive NO

EDPSY 406
HW #2 (Lab portion)
Name:_
For this section, please use SPSS or another statistical package of your choice to perform the
appropriate data analysis. When answering these questions, please supply relevant output to
support your answer. Output onl

Part 2: Using SPSS
For this section, you will be entering data into SPSS and running a multiple regression analysis.
Using relevant output, please answer the following questions. DO NOT just paste in output with
no explanation. Output only will result in

EDPSY 406
HW #3
Name:_
This portion of the homework will be worth 15 out of a total of 25 points. Please be sure to
show your calculations when necessary!
#1. Gulab has just conducted a study where he examined the effects of socioeconomic status
(SES) and

EDPSY 406
HW #2
Name:_
NOTE: This is only the HW part of the next take-home assignment. The lab portion will be
posted later in the week, and we will dedicate class on Friday, 2/24 to work on it.
#1.
Tests of Between-Subjects Effects
Source
Type III Sum o

EDPSY 406
HW #1
Name:_
Part 1: Short Answer
Please answer the following questions as concisely as possible. For questions that involve
calculations, please show ALL of your work so I may award partial credit when necessary. For
other questions, try to lim

EDPST 406
Basic ANOVA concepts
In one-way ANOVA, we are trying to compare the means of three (or more) groups. Put another
way, we are trying to analyze where all of the variance in Y is coming from. In one-way
ANOVA, there are two possible sources of var

One Way ANOVA sample problem
Scenario: Charlyn, a researcher interested in methods of math education, wanted to see the
effects of two different cutting edge math programs on student achievement. To test this,
Charlyn randomly selected 30 students, assign

EDPSY 406
2/3/11
Review of Independent and
Dependent T-tests
Independent vs. Dependent
Remember,
there are two different types
of t-tests
An
independent t-test compares two
different, unrelated groups
For example, males/females, smokers/non-
smokers, e

Z-scores and the
sRecall that the definition of a z score is as follows:
tandardized regression
equation
This is called a standardized score because it represents a
data point in terms of the number of standard deviation the
point is from the mean
Z scale

Introduction to Multiple
Regression
EDPSY 406
1/18/12
Residuals
In simple and multiple regression, the predicted value of
Y will rarely equal the actual observed score, even if we
are using the best possible job of estimating
This difference between the e

TwoFactorANOVA
EDPSY406
March21,2012
WhatisafactorinANOVA?
n
n
Itisanindependentvariable
n AcademicLevel(elementaryversussecondary)
n Gender(female;male)
n Treatment(experimental;control)
Youcanhavemorethanoneinyourmodel.
n Areacademiclevelandgenderrelate