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Introduction to Statistics for the Social Sciences SBS200, COMM200, GEOG200, PA200, POL200, or SOC200 Lecture Section 001, Fall, 2013 Room 120 Integrated Learning Center (ILC) 10:00 - 10:50 Mondays, Wednesdays & Fridays. Welcome. http://www.youtube.com/watch?v=oSQJP40PcGI. Use this as your

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Introduction to Statistics for the Social SciencesSBS200, COMM200, GEOG200, PA200, POL200, or SOC200Lecture Section 001, Fall, 2013Room 120 Integrated Learning Center (ILC)10:00 - 10:50 Mondays, Wednesdays & Fridays.

Welcome

http://www.youtube.com/watch?v=oSQJP40PcGI

by the end of lecture today 9 6 13

Use this as your

study guide

By the end of lecture today9/6/13

Review:

Independent and dependent variables

Control versus treatment

True experimental versus quasi-experimental methodology

Single blind (placebo) procedure

Double blind procedure

Continuous vs Discrete Variables

Levels of Measurement

Nominal, Ordinal, Interval, & Ratio

Descriptive vsinferential

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Schedule of readings

Before next exam (September 27th)

Please read chapters 1 - 4 in Ha & Ha textbook

Please read Appendix D, E & F onlineOn syllabus this is referred to as online readings 1, 2 & 3

Please read Chapters 1, 5, 6 and 13 in Plous

Chapter 1: Selective Perception

Chapter 5: Plasticity

Chapter 6: Effects of Question Wording and Framing

Chapter 13: Anchoring and Adjustment

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In nearly every class we will use clickers to:

  • answer questions in class and participate in
  • interactive class demonstrations
  • We’ll register them on our webpage- then use ‘em!

student.turningtechnologies.com (Please note there is no “www”)

Complete this in the next two weeks and receive extra credit!

(By September 6th 2013)

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Please click in

My last name starts with a

letter somewhere between

A. A – D

B. E – L

C. M – R

D. S – Z

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Homework due – Wednesday (September 11th)

On class website: please print and complete homework worksheet #3 & 4

Please double check – Allcell phones other electronic devices are turned off and stowed away

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Lab sessions

Everyone will want to be enrolled

in one of the lab sessions

Labs start on Monday

so far
So far,

Measurement: observable actions

Theoretical constructs: concepts (like “humor” or “satisfaction”)

Operational definitions

Validity and reliability

Independent and dependent variable

Random assignment and Random sampling

Within-participant and between-participant design

Single blind (placebo) and double blind procedures

so far1
So far,

Continuous vs Discrete variables

Quantitative vs qualitative variables

Levels of measurement:

Nominal, Ordinal, Interval and Ratio

what are the four levels of measurement
What are the four “levels of measurement”?

Categorical data

  • Nominal data - classification, differences in kind, names of categories
  • Ordinal data - order, rankings, differences in degree

Numerical data

  • Interval data - measurable differences in amount, equal intervals
  • Ratio data - measurable differences in amount with a “true zero”

Look at your examples of qualitative and quantitative data.

Which levels of measurement are they?

Hand in your writing assignment

homework review
Homework review

You are looking to see if “class standing” affects

the “level of sales”.

Class standing

Independent variable (IV):______________

Number of levels of IV: ________________ (how many means?)

Quasi or True experiment:______________

Dependent variable: __________________

Between or within participant design: ______________

In this study, what is the operational definition of “class standing”?

In this study, what is the operational definition of “level of sales”?

4

Quasi

Level of sales

Between

Classification based on units earned

Number of bags of peanuts sold

homework review1
Homework review

You are looking to see whether “type of program”

has an effect on “body transformation”.

Please identify the following variables:

Independent variable (IV):______________

Number of levels of IV: _______________ (how many means?)

Quasi or True experiment:______________

Dependent variable: __________________

Between or within participant design: ______________

What is the operational definition of “type of program”?

What is the operational definition of “body transformation”?  

Type of program

2

True

Body transformation

Between

Type of program = type of diet (regular versus programmatic diet)

Body transformation = number of pounds lost

homework review2
Homework review

You are looking to see which driving choice is most

efficient. So you ask each driver to drive each of the

three routes and time themselves on how long it takes.

Please identify the following variables:

Independent variable (IV):______________ (how many means)

Number of levels of IV: ________________

Dependent variable: __________________

Between or within participant design: ______________

What is the operational definition of “driving efficiency”?

What is the operational definition of “driving choice”?

Type of route

3

driving efficiency

Within

Driving efficiency = travel time (measured in minutes)

Driving choice = route taken

homework review5

gender

Homework review

2

quasi

salary

between

nominal

ratio

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Name of City

3

Quasi- experiment

Temperature

Between

Nominal

Interval

homework review6
Homework review

city

3

quasi

temperature

between

nominal

interval

Must be complete and must be stapled

Hand in your homework

writing assignment pop quiz
Writing Assignment – Pop Quiz

Ari conducted a watermelon seed spitting experiment. She wanted to know if people can spit farther if they get a running start. She tested 100 people. She randomly assigned them into one of two groups. One group stood still on the starting line and spit their watermelon seeds as far as they could. The second group was allowed to run up to the starting line before they spit their watermelon seeds. She measured how far each person spit their watermelon seeds.

Please answer the following questions

1. What is the independent variable?

2. The independent variable: Is it continuous or discrete?

3. The independent variable: Is it nominal, ordinal, interval or ratio?

4. What is the dependent variable?

5. The dependent variable: Is it continuous or discrete?

6. The dependent variable: Is it nominal, ordinal, interval or ratio?

7. Is this a quasi or true experiment?

8. Is this a within or between participant design

9. Is this a single blind, double blind or not at all blind experiment?

10. Be sure to put your name, Lab Section and CID on this page

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Thank you!

See you next time!!