PSY 201: Introduction to Statistics in Psychology

Fall 2017
MWF 11:30 am - 12:20 pm
Peirce Hall, Room 277

Announcements

18 December: The final exam is graded. You can see the scores for the exam and all other aspects of the course here. Each row is for a student, who is identified by the assigned login ID for the IntroStats textbook. Overall, the class grades are pretty good, with almost half the students earning a B and one student earning a rare A+.
10 December: Here are the TA's answers to Practice Exam 4. The last two questions are not covered because they will not be part of this semester's exam.
28 November: As discussed in class on Monday, Dr. Francis will be out of town December 5-15. Thus, Monday, December 4 will be the final lecture. The TA will be present at the remaining classes to over help on homework assignments and review for the final exam. Dr. Francis will be back for the final exam, which is Saturday, December 16, 8-10 am.
28 November: Exam 3 is graded. You can see the scores for the exam and all other aspects of the course here. Each row is for a student, who is identified by the assigned login ID for the IntroStats textbook. Overall, scores for Exam 3 were similar to the previous exams. At the moment, everyone is on track to score at least a C- for the course, but there are a few students on the edge.
16 November: Here are the TA's answers to Practice Exam 3.
03 November: The link to the study guide for Exam 3 is now active. I also revised the PracticeExam3.
01 November: Exam 2 is graded. You can see the scores for the exam and all other aspects of the course here. Each row is for a student, who is identified by the assigned login ID for the IntroStats textbook. Overall, scores for Exam 2 were quite good. Students in danger of getting a final grade below C need to improve their STATLAB score. There are only 4 labs remaining in this semester, so it is crucial that you get all those points.
20 October: Here are my answers to Practice Exam 2.
15 October: I realized that Practice Exam 2 included some material that we have not yet discussed (the order of some topics is changed from a year ago). I created a revised Practice Exam 2, which is available here.
02 October: There was an error in the reported STATLAB grade. I had mistakenly included the Typical Reasoning lab in the grade, but it is not due until Wednesday. The updated grade sheet is here.
02 October: Exam 1 is graded. You can see the scores for the exam and all other aspects of the course here. Each row is for a student, who is identified by the assigned login ID for the IntroStats textbook. Overall, scores for Exam 1 were quite good. Students need to stay on top of the STATLAB assignments because they are bring down the estimated class grades.
20 September: I added a few equations (for z-scores) to the last page of the study guide.
18 September: By request, here are my answers to Practice Exam 1.
14 September: Dr. Francis continues to have problems with his back and will not be able to give tomorrow's lecture. We will catch up next week. The TA will be present to answer questions and to allow students to turn in the Practice Exam 1.
30 August: Dr. Francis will be out of town on Friday, 01 September. Students should watch the recorded lecture. (It's not a perfect recording, with a couple of pauses and gaps.) All assignments are due as indicated on the schedule, below.

Professor

Greg Francis

PSYCH 3186

494-6934

gfrancis@purdue.edu

Office hours: Monday, Wednesday and Friday 2:00-3:00 pm

I check my email frequently, feel free to use it for questions and setting up appointments. If you cannot make my office hours, we can schedule for another time.

Class home page
The Internet home page for this course is http://www.psych.purdue.edu/~gfrancis/Classes/PSY201/indexF17.html This class does not use Blackboard.

Text
IntroStats Online at https://introstatsonline.com. This is an on-line textbook that requires a login. You will receive information on setting up and registering an account from the instructor. You will be graded for finishing the readings by the assigned day and time (always 10:00 am). A rough outline of the readings is given below. Precise readings (sections and their due dates) are given at the textbook site. Each assignment must be completed by the assigned date and time. The textbook grade counts as 10% of your class grade.

Homework
The IntroStats Online text includes end-of-chapter homework assignments. The rough schedule is below, with precise details (which questions) at the textbook site. All homework assignments must be completed by 10:00 pm on the due date. The homework will make up 20% of your final grade.

StatLab assignments
Also included with your textbook is access to a web site called StatLab Online. A StatLab account, with the same login credentials, will be created when you sign up for your IntroStats Online account. You will be given StatLab assignments throughout the semester that measure some aspect of your behavior. They are run through the Internet and can be carried out at any computer lab on campus or at a home computer. At the end of each experiment you will need to calculate statistics that are appropriate for the experimental results. You get credit by finishing the experiment and answering all of the statistics questions correctly. Your overall lab grade will make up 15% of your final grade. In the schedule below, individual labs are associated with different dates. You must complete the lab by 10:00 pm on the date indicated to get credit. You will find that computing the statistics is easiest if you copy and paste the data into a spreadsheet such as Microsoft Excel. If you have not previously used Excel, you may want to look over a tutorial to get started. Sorting is especially useful, and unfortunately is not covered in the previous tutorial.

Class attendance: Your presence for the lectures is mandatory, and will be checked each class period. Over the course of the semester, each student may miss up to 6 lectures without penalty. Additional absences will proportionally reduce your class attendance score. This score contributes to 5% of your final class grade. Athletes and other special cases need to contact Dr. Francis.

Examinations
There will be three section exams and a final exam. The section exams will be in-class and the final exam will be given during the final exam period. Each section exam is worth 10% of your grade. The final exam is worth 15% of your grade, it will cover all topics of the course, and it is taken during the scheduled final exam period. Make-up exams will not be permitted unless you check with Dr. Francis at least 48 hours prior to the scheduled exam date to verify that your excuse allows you to take the exam at another time. Missed exams will receive a grade of 0. Study guides are available as links in the class schedule below.

Practice exams
Prior to each exam you will be given a practice exam (from Fall 2015). You must complete the practice exam and submit it to the TA for feedback by the date indicated in the schedule, below. Your grade on the practice exam is whether you complete the assignment, it is not based on the graded score of the practice exam. Completing the practice exams is worth 5% of your final class grade.

Lectures
The number links on the far left of the schedule (below) are to PDF copies of the lecture notes.

Teaching Assistant

Farzin Shamloo

Peirce Hall Room 365B

farzin.shamloo@gmail.com

Office hours:Tuesday and Friday 3:00-4:30 pm

Schedule
Handouts are in portable document format (pdf). You can view them with a pdf viewer, for example, Adobe Acrobat Reader, which is probably already installed on university computers and is available for free at http://www.adobe.com/prodindex/acrobat/readstep.html.

SCHEDULE
No.	Date	Topic	Reading Assignments	Homework Assignments	StatLab Assignments	Practice Exams
01	August 21	Introduction
02	August 23	Measurement	Chapter 1
03	August 25	Plots	Chapter 2	Homework 1
04	August 28	Distributions
05	August 30	Central tendency	Chapter 3a	Homework 2	Frequency distribution - Speeded Reaction Time
06	September 1	Variability	Chapter 3b		Percentile Rank - Sense of Humor
--	September 4	Labor Day (No class)
07	September 6	Normal distribution	Chapter 6a	Homework 3
08	September 8	Normal distribution	Chapter 6b		Central Tendency - Horizontal Vertical Illusion
09	September 11	Normal distribution			Standard Deviation - Weber's Law
10	September 13	Correlation	Chapter 4a	Homework 4
11	September 15	Correlation	Chapter 4b		Standard (z) scores - Memory Span	Practice Exam 1
12	September 18	Correlation
13	September 20	Probability	Chapter 5a	Homework 5
SG1	September 22	Review for exam			Correlation - Lexical Decision
--	September 25	SECTION EXAM I
14	September 27	Probability
15	September 29	Probability	Chapter 5b	Homework 6
16	October 2	Sampling distributions	Chapter 7a
17	October 4	Sampling distributions			Probability - Typical Reasoning
18	October 6	Hypothesis testing-mean	Chapter 9a	Homework 7
--	October 9	Oct. Break (No class)
19	October 11	Hypothesis testing-mean	Chapter 9b
20	October 13	Hypothesis testing-mean	Chapter 8a and 10a
21	October 16	Estimation	Chapter 8b	Homework 8
22	October 18	Estimation	Chapter 8c and 9c		Hypothesis test of a mean - Ebbinghaus Size Illusion	Practice Exam 2 (Revised)
23	October 20	Hypothesis testing-correlation	Chapter 7b and 8d	Homework 9
SG2	October 23	Review for exam			Confidence Intervals - Air Traffic Control
--	October 25	SECTION EXAM II
24	October 27	Hypothesis testing-proportions	Chapter 7c and 8e
25	October 30	Two samples - independent means	Chapter 7c, 8f, and 10b	Homework 10
26	November 1	Two samples - independent means	Chapter 10c		Two-sample t-test - Emotional Stroop
27	November 3	Two samples - dependent means	Chapter 10d
28	November 6	Two samples - other statistics		Homework 11
29	November 8	Two samples - other statistics
30	November 10	Power	Chapter 11
31	November 13	Power				Practice Exam 3
32	November 15	Power			Power -- Stroop Effect
SG3	November 17	Review for exam		Homework 12
--	November 20	SECTION EXAM III
--	November 22	Thanksgiving Break (No class)
--	November 24	Thanksgiving Break (No class)
33	November 27	ANOVA	Chapter 10e and 13a
34	November 29	ANOVA	Chapter 13b
35	December 1	ANOVA
36	December 4	ANOVA	Chapter 13c		ANOVA -- Judging Art
37	December 6	Catch all		Homework 13
SGF	December 8	Review for final exam				Practice Exam 4
No.	Date	Topic	Reading assignments	Homework assignments	StatLab assignment	Practice Exams