PSY 230
Module 2, Assignment (A-2)
Q1) Behavioral scientists know that both genetics and environment play a role in most
human characteristics. Correlation studies are often used to help determine whether
certain human characteristics are controlled more
PSY 230
Module 4, Assignment (A-4)
Q1) Find the t values that form the boundaries of the critical region for a two-tailed test with = .05 for each of the
following sample size (n) values.
a) n = 9 (df=8), -2.306 and +2.306
b) n = 16 (df=15), -2.132 and +2
PSY 230
Module 3, Assignment (A-3)
Q1) Find the z values that form the boundaries of the critical region for a two-tailed test with = .05 for each of the
following sample size (n) values.
a) n = 9 -1.96 and +1.96
b) n = 16 -1.96 and +1.96
c) n = 24 -1.96
PSY 230
Week 7 Extra Credit
Training Skills of Divided Attention among Older Adults
Ilmiye Seer
Department of Psychology, Eastern Mediterranean University, North Cyprus
Lata Satyen
School of Psychology, Deakin University, Australia
The article I chose pea
PSY 230
Module 7, Assignment (A-7)
Q1a) Conduct a Chi-Square Test for Goodness of Fit.
STEP 1: STATE HYPOTHESES
Population 1: Food Rewards like those in the study
H0: The distribution of observations over categories in the two populations
are the same
Pop
Module 5 Assignment (A-5)
For this assignment you will use multiple data sets, each embedded within the assignment below.
Q1 and Q2:
Steven Schmidt (1994) conducted a series of experiments examining the e
FS Chapters 8 and 9 Page 1
PSY 230: MEASUREMENTS AND STATISTICS
Formula Sheets Chapters 8 and 9
Population
Sum of Squares
(definitional)
Sum of Squares
(computational)
Sample
SS X 2
SS X M 2
SS X 2
X 2
N
SS X 2
X 2
Variance
2
SS
N
2
s
SS
n 1
Standa
Activities/Exercises
Page 1
PSYCHOLOGY 230: MEASUREMENTS AND STATISTICS
Chapter 2 Practice Problems, Part 1
3 points
Last Name
First Name
1a. For the following set of scores, complete the cumulative grouped frequency distribution
tables below.
64, 75, 50,
Activities/Exercises
Page 1
PSYCHOLOGY 230: MEASUREMENTS AND STATISTICS
Chapter 3 Practice Problems, Part 1
Last Name
1a.
First Name
Fill in the missing information associated with the frequency distribution below.
X
f
Xf
5
10
50
4
6
3
2
2
1
1
1
b.
Calcul
CHAPTER 6: PROBABILITY
Why study probability?
A. Inferential statistics used limited information from a
sample to draw general conclusions about a population
1. The relationship between samples and populations is
usually stated in terms of probability
B.
FS Chapters 13 and 15 Page 1
PSY 230: MEASUREMENTS AND STATISTICS
Formula Sheets
ANOVA
k = number of levels in a study (the number of subject groups)
k = dfbetween +1
n = number of scores in each level (the number of subjects in each group)
n=
N = total n
CHAPTER 10: THE t TEST FOR
TWO INDEPENDENT SAMPLES
Chapter Overview
A. Things get a little more 'complicated' in Chapter 10
compared to Chapter 9
1. Chapters 8 and 9 involved single population hypothesis
tests
a. Cats sleep about 18 hours per day
b. Adul
CHAPTER 11: THE t TEST
FOR RELATED SAMPLES
Independent or between (Chapter 10) vs related or within
(Chapter 11) sample designs
A. Independent (between) sample designs utilize two
independent subject groups
1. Subjects are randomly selected and randomly
CHAPTER 9: INTRODUCTION
TO THE t STATISTIC
General Information
A. In chapter 8, you calculated the z test statistic
1. z is used when
a. However,
and
and
are know
are usually not known!
B. In chapter 9, you will calculate the t test statistic
1. t tests
CHAPTER 5:
STANDARDIZED DISTRIBUTIONS
Standardized distributions
A. Consist of scores that have been transformed from their
original raw score distribution
1. The transformed or standardized scores are called
z-scores
Formula for standardizing a raw sco
CHAPTER 2: FREQUENCY DISTRIBUTIONS
Terminology
A. Frequency (f): Number of times an X value occurs
B. Distribution: The values of X across score ranges
C. Table: A textual list of X values
D. Polygon and Histogram: Graphical representations of
distributio
CHAPTER 8: INTRODUCTION
TO HYPOTHESIS TESTING
Definition of Hypothesis Testing
A. An inferential procedure that uses sample data to
evaluate the credibility of an hypothesis about a
population
1. Remember, an hypothesis is a testable prediction about
the
CHAPTER 4: VARIABILITY
Information from Chapter 4 that will NOT be on Exam 2
A. Interquartile and semi-interquartile ranges
1. These values are very rarely used in statistics because
they hold little descriptive value
B. Degrees of freedom (df)
1. The im
PSYCHOLOGY 230:
MEASUREMENTS AND STATISTICS
Statistics - The term refers to a set of
mathematical procedures for organizing,
summarizing, and interpreting information
1
RESEARCH METHODS
2
EXPERIMENTAL RESEARCH
Experimental research - one variable is mani
A Criticism for Fodors Module Theory on the Mind 1
A Criticism for Fodors Module Theory on the Mind
There is a debate between Naturalists and Philosophers concerning their approach on
knowledge, language, and the mind. Naturalists try to use empirical sci
FS Chapters 10 and 11 Page 1
PSY 230: MEASUREMENTS AND STATISTICS
Formula Sheets Chapters 10 and 11
INDEPENDENT-MEASURES (two sample) t-TESTS (Chapter 10)
(subscripts denote samples 1 and 2)
2
SS1 X 1
Sum of Squares
2
sp
Pooled Variance for
Two Samples
FS Chapters 8 and 9 Page 1
PSY 230: MEASUREMENTS AND STATISTICS
Formula Sheets Chapters 8 and 9
Population
Sum of Squares
(definitional)
Sum of Squares
(computational)
SS
2
X
SS
X
Sample
X
N
2
2
SS
s2
s
SS
n 1
z
, where
2
M=
X
Cohen's d =
M
M
X
z
z-Sore F
CHAPTER 7: THE DISTRIBUTION
OF SAMPLE MEANS
Brief Review
A. Chapter 6 focused on the probability of finding a particular score
or set of scores related to a population
1. Chapter 7 focuses on the probability of finding particular
samples related to a kno
Activities/Exercises
Page 1
PSYCHOLOGY 230: MEASUREMENTS AND STATISTICS
Chapter 3 Practice Problems, Part 2
As a component of this assignment you are required to cite the textbook authors at least two
times in your responses (you might find the need to us
Julie Leau
1/17/16
PSY 230
Module 1, Assignment (A-1)
Q1) Create a frequency table for three of the following categorical variables.
X
X
a) Gender (Table 1-1)
B) Month Born
c) Birth Order (Table 1-2)
d) Political Affiliation
e) Favorite Season
Table 1-1
G
PSY 230
Module 5, Assignment (A-5)
For Q1 and Q2:
Steven Schmidt (1994) conducted a series of experiments examining the effects of humor on
memory. In one study, participants were given a mix of humorous and non-humorous
sentences and significantly more h
*Disclaimer*
This syllabus is to be used as a guideline only. The information provided is a summary of topics to be covered in the class.
Information contained in this document such as assignments, grading scales, due dates, office hours, required books a
*Disclaimer*
This syllabus is to be used as a guideline only. The information provided is a summary of topics to be covered in the class.
Information contained in this document such as assignments, grading scales, due dates, office hours, required books a
Sarah Henderson
09/04/2016
PSY 230
Assignment A-2: Correlations
For this assignment, you will use multiple embedded data sets. (Worth 50 points)
Q1) Behavioral scientists know that both genetics and the environment play a role in most
human characteristic
Sarah Henderson
09/11/2016
PSY 230
Assignment A-3: Hypothesis Testing using the Z statistic
For this assignment, you will use multiple data sets.
Q1) Find the z values that form the boundaries of the critical region for a two-tailed test
with for ea
Sarah Henderson
PSY 230
09/25/2016
Assignment A-5: Independent Samples t-tests
For this assignment, you will use multiple datasets.
For Questions 1 and 2, please use the following scenario/data set:
Steven Schmidt (1994) conducted a series of experiments