Psychological Statistics
Psy-302
Instructor: Christopher M. Bloom, Ph.D.
Office: LA 3049
Phone: (812) 465-1245
Office Hours:
This course introduces statistical methods including organization
and presentation of data, measures of central tendency and variability,
hypothesis-testing, correlation, regression, sampling, the F distribution, the
t distribution, and the Chi-square distribution. Prereq: PSY 201 and mathematics requirement for the University Core
Curriculum..
About the Course
Statistics are everywhere.
Did you know that Scott Rolen hits .286 on Tuesday night games in Domed
stadiums? I hope not, but why would
anyone care? If you’ve been to
We begin the process of making accurate predictions by first
describing the situation. We must first
know what we are dealing with before we can make a prediction. We then turn our attention to describing
other events that may interact or affect our prediction. If we can describe related factors, our
chances of predicting correctly improve.
The relationships that exist between factors can provide us with
valuable information. Having finally
described our situation completely we are in a position to infer the outcome,
i.e. to predict!
Or in other (fancy) words…..
Data is collected by sampling from a
large set of things (individuals, objects, measures). The sample of things
constitute a subset of the population and numbers resulting from the
manipulation of sample data are called statistics. Statistics are numbers that
characterize a sample. Statistics may describe the sample. For example, we
might add all the numbers in a sample and then divide by the number of numbers
in the sample and call the resulting statistic the mean of the sample.
Frequently, statistics calculated from samples drawn from a population are used
to estimate characteristics of the population. Characteristics of a population
are called parameters. Thus, the mean of a sample is a statistic and the mean
of a population is called a parameter.
Generally statistics serve two
functions:
1) to describe the nature of the sample
and
2) to infer about characteristics of a
population (parameters) from a sample (statistics).
That's what it is all about, and we will
spend the next 17 weeks learning about those two very basic functions.
Required
Materials
Textbook
Heiman, Gary W. (2001). Basic Statistics for the Behavioral
Sciences, 4th edition.
Calculator
A calculator is essential. We will be carrying out fairly large calculations which if one were to do by hand would take far too long. The math in this course is really quite simple but it can be tedious so a calculator should help you along.
Evaluation
Exams (4 * 100 Points)
The course consists of 2 mid-term & 1 final exam. Exams will be combination of multiple choice,
calculations and essay questions.
Quizzes ( 3 * 10 Points)
Quizzes will occur throughout the semester and will center
around the topics currently being discussed in the course. Quizzes will be fairly brief and often
consist of a single problem to solve.
Quizzes will be very similar to recent in-class or homework assignments
and will reward you for remaining current.
Quizzes will NOT be announced prior to class and cannot be made up if
missed. Occasionally, extra credit
quizzes may be offered in addition to the 7 specified here.
Homework (10 * 10 Points)
In a typical week, homework will be assigned to be finished
over the weekend and turned in when we return.
Homework in many ways is the most important aspect of the course. It allows you to practice the things we’ve
learned in class and really master them.
Math, including statistics, is really a matter of practice not skill or
intelligence. We’ll get lots of practice. Additional extra credit assignments may be
offered in addition to the 12 specified here.
In Class Assignments (60 points)
More of the same but in this instance I’ll be there to
help. We’ll often carry out problems in
groups and present them to each other.
This is a bit old fashioned I admit but I find it exceedingly
helpful. Those of you who struggle will
have a chance to practice with someone around to help and those of you who
thrive can use it as an opportunity to teach your class-mates. Nothing helps master a concept like trying to
teach it!
Point Break Down
|
Task |
Number |
Points |
Total |
|
Exams |
4 |
100 |
400 |
|
Homework |
10 |
15 |
150 |
|
Quizzes |
3 |
10 |
30 |
|
In Class |
|
70 |
70 |
|
Total. |
|
|
650 |
Grade Breakdown

91-100% A 81-90% B
71-80% C 65-70% D
Academic Honesty
Cheating on examinations and/or
plagiarism will not be tolerated.
Students will receive a grade of F for the course and the incident will
be brought to the attention of the department chairperson. Please find below the statement of Academic
Honesty:
“The
college community relies on academic honesty which requires that words and
ideas that
students present as their own truly
represent their own work. Plagiarism,
defined as using another writer’s ideas or expressions without adequate
acknowledgment, undermines the very foundation of education that is a quest for
the truth. Often plagiarism occurs
because students do not understand the boundaries of legitimate scholarship. In brief, the honest use of research material
requires that writers:
1.
Use quotation marks around (or indent) words of
another writer, and cite the source of these words;
2.
Cite the source of paraphrased material, even
when the paraphrase differs substantially from the original;
3.
Attribute to their sources ideas of other
writers.
4.
Purchase the work of others in part or in whole.
A handbook on writing research
papers will provide writers with detailed information on citation of
sources. The MLA handbook, in
particular, includes examples of plagiarism.
Cheating is a purposeful
deception in preparation of papers, and assignments and the taking of
examinations, tests or quizzes.”
Schedule of Events
Attached is a
schedule of course topics and events.
Please note that this schedule is subject to change and it is the responsibility
of the student to keep abreast of any changes in scheduling that occurs.
|
Date |
Topic |
|
|
|
Introduction
& Review of Syllabus |
Chapters 1 & 2 |
|
|
Statistics
as a Research Tool |
|
|
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|
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|
Dr. King's Birthday |
|
|
|
Frequency
Distributions |
Chapter 3 |
|
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|
Central
Tendency |
Chapter 4 |
|
|
Variability |
Chapter 5 |
|
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|
Exam 1 |
Chapters 1-5 |
|
|
z-scores
& Normal Distribution |
Chapter 6 |
|
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Correlations |
Chapter 7 |
|
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Linear
Regression & Prediction |
Chapter 8 |
|
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Exam 2 |
Chapters 6-8 |
|
|
Probability |
Chapter 9 |
|
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OverView of Statistical Hypothesis |
Chapter 10 |
|
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|
Spring break |
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Spring break |
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Spring break |
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Chapter 10 |
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Single
sample t & correlations |
Chapter 11 |
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Exam 3 |
Chapters 9-11 |
|
|
Two-sample
t-test |
Chapter 12 |
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F-test |
Chapter 13 & 373-382 of 14 |
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Two-Way
ANOVA |
Chapter 14 |
|
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No Class |
|
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Non-Parametrics |
Chapter 15 |
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Final
Exam Review |
Chapters 12-15 |
Final Exam as Scheduled