Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Daniel Zhu
Prof. Whitfield
31416
FINA 2720
Du Pont Freon Products Division Case (SILVER)
Du Pont de Nemours and Company was founded in the early 1800s as an
explosives manufacturer. By 1987, Du Pont was ranked ninth in the fortune 500,
with over $30 bil
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Midterm I Review
Units 19
(with an emphasis on 59)
Midterm Exam Logistics
Midterm will be held during the regular class time and location on
Tuesday: it starts at approximately 10:07 and runs for 83 min.
Its closedbook. You are allowed two 8
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
11/13/2013
Unit 10 Outline
Stat 101
More Multiple Regression Topics
Unit 10: More Multiple Regression
Binary Predictors to compare 3 or more group means
Interaction of Effects and Interaction Terms
Transformation of Variables
1
Example: Inference for
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
11/6/2013
Midterm Exam Logistics
Midterm will be held during the regular class time and location on
Tuesday: it starts at approximately 10:07 and runs for 83 min.
Stat 101
Its closedbook. You are allowed two 8.5x11 page or notes(frontandback OK) No la
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Unit 9: Inference for Regression
Textbook Chapters 9 & 10
1
Lecture Outline
Inference for Correlation
Inference for Simple Linear Regression
Inference for the slope and general association
Inference for predictions at a particular x*
Multipl
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101 Fall 2013
Midterm II Review Problem Solutions
1. For each of the situations described below, select the inference technique that you believe is the
most applicable, and whether its a hypo test or CI. If it is a statistical hypothesis test, state
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
10/21/2013
Lecture Outline
Stat 101
2 test for GoodnessofFit
Unit 8: Inference for Categorical Variables
Textbook Chapter 8
Contingency Tables
2 test for Association of two Categorical Variables
Odds and the Odds Ratio
2
Distribution of Colors for P
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Unit 7: Inference for Two Groups
Textbook Chapter 7
Lecture Outline
Getting our Bearings
Inference for Two Means (12)
Means Matched Pairs (Diff = 12)
Inference for Two Proportions (12)
Proportions Matched Pairs (Diff= 12)
2
Road Map to I
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Unit 12: Logistic Regression
Textbook Chapter 15
Unit 12 Outline
Logistic regression
Simple logistic regression
Example: alcohol and heart disease
Multiple logistic regression
Example: predicting Red Sox wins
2
Logistic regression
So far we ha
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Chapter 6
LO1 Identify the characteristics of a probability distribution.
A listing of all the outcomes of an experiment and the probability
associated with each outcome.
Probability Distribution of Number of Heads Observed in 3 Tosses of a Coin
LO2 Disti
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Haydar Kadir
Basic Statistics
CBS 2016
Statistics
The science of collecting, organizing, presenting, analyzing, and interpreting data to assist in making more
effective decisions in present time.
Chapter 1 What is Statistics
LO1 List ways that statistics
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Chapter 8
LO1 Explain why a sample is often the only feasible way to learn something about a
population.
Why sample a Population?
1. To contact the whole population would be time consuming.
2. The cost of studying all the items in a population may be proh
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Useful for independent samples^
Dependent:
1.
2.
3.
4.
Before and after.
Observations are paired.
Common denominator between each pair of observation.
The analysis is based on the difference between each pair
Chapter 10  OneSample Tests of Hypothesis (R
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Excel Statistical Functions
Count & Frequency
Distribution & Tests of Probability
COUNT
Returns the number of
BETADIST
numerical values in a
supplied set of cells or values
COUNTA
Returns the number of nonblanks in a supplied set of
cells or values
COUNTB
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
12/8/2013
Final Exam Logistics
Stat 101
The Final Exam will be held on Friday, Dec 13,
25pm in Emerson Hall room 305.
Its closedbook. You are allowed three 8.5x11 pages of notes
(frontandback OK). No laptops or cell phones, Remember to
bring a calcu
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Final Exam Review
Units 112
(with an emphasis on 912)
Final Exam Logistics
The Final Exam will be held on Friday, Dec 13,
25pm in Emerson Hall room 305.
Its closedbook. You are allowed three 8.5x11 pages of notes
(frontandback OK). No lap
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Unit 11: Analysis of Variance
Textbook Chapter 12
Unit 11 Outline
Analysis of Variance (ANOVA)
General format and ANOVAs Ftest
Link to binary regression
Contrast testing
Multiple comparisons (& the Bonferroni correction)
Twoway ANOVA (and Mult
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
11/21/2013
Unit 11 Outline
Stat 101
Analysis of Variance (ANOVA)
Unit 11: Analysis of Variance
Textbook Chapter 12
General format and ANOVAs Ftest
Link to binary regression
Contrast testing
Multiple comparisons (& the Bonferroni correction)
Twoway ANOV
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Unit 8: Inference for Categorical Variables
Textbook Chapter 8
Lecture Outline
2 test for GoodnessofFit
Contingency Tables
2 test for Association of two Categorical Variables
Odds and the Odds Ratio
2
Distribution of Colors for Plain M&Ms
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
10/14/2013
Lecture Outline
Stat 101
Getting our Bearings
Inference for Two Means (12)
Unit 7: Inference for Two Groups
Means Matched Pairs (Diff = 12)
Textbook Chapter 7
Inference for Two Proportions (12)
Proportions Matched Pairs (Diff= 12)
2
Ro
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
9/10/2013
Methods for Describing Data
Unit 3: Descriptive Statistics
Chapter 3 in the Text
If you want to inspire confidence, give plenty of statistics. It does
not matter that they should be accurate, or even intelligible, as
long as there is enough of t
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Unit 2: Sampling and Measurement
Chapter 2 in the Text
Variables & Measurement
Collecting Data
Sampling
Sampling Bias
In God we trust. All others must bring data.
W. Edmunds Deming
1
Variables and their Measurements
Variable: Any characteristic that tak
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
9/5/2013
Variables and their Measurements
Unit 2: Sampling and Measurement
Chapter 2 in the Text
Variable: Any characteristic that takes different values for
different individuals in a sample or population
Measurement scale: the type of measurements tha
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
10/8/2013
Midterm Exam Logistics
Stat 101
Midterm will be held during the regular class time and location on
Thursday: it starts at approximately 10:07 and runs for 83 min.
Its closedbook. You are allowed one 8.5x11 page or notes(frontandback OK) No l
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
9/2/2013
Unit Outline
Welcome to Stat 101:
Introduction to Quantitative Methods for
Psychology and the Behavioral Sciences
Kevin Rader, krader@fas.harvard.edu
Course Logistics and Details
The What and Why of the Field of Statistics?
Much needed terminolog
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Unit 5b: Midterm Review
Practice Problems Solutions
Practice Problem #1
The following are a collection of unrelated quick problems. Briefly justify
your answer for each problem.
a) Suppose that A and B are two disjoint events within the same sample
space.
Introduction to Quantitative Methods for Psychology and the Behavioral Sciences
STATISTICS 101

Fall 2013
Stat 101
Midterm I Review
Units 15
Midterm Exam Logistics
Midterm will be held during the regular class time and location on
Thursday: it starts at approximately 10:07 and runs for 83 min.
Its closedbook. You are allowed one 8.5x11 page or notes(front