COMPARING REJECTIONS OF INEQUITYIN

INDIA AND PERU

Lab 4: Data Analysis

Conditions: Apparatus:

“DI”: Disadvantageous Inequity The decider gets 1

Skittle, the other child gets 4

“AI”: Advantageous Inequity The decider gets 4

Skittles, the other child gets 1

The decider can choose to pull the green handle and accept the offer, or pull the red handle and reject it

Refresher:

Refresher:

Blake and McAuliffe (2011) studied American children, aged 4-8

Findings:

as age increased, so did rejections of DI Less likely to accept a bad offer as they got older

Only 8-yr-olds were much more likely to reject AI Suddenly at age 8, they would not accept unequal offers,

even in their favor

Blake & McAuliffe’s findings

4 5 6 7 80

1

2

3

4

5

6

Disadvantageous Inequity (DI)

Age in Years

Rej

ecti

ons

Blake & McAuliffe’s findings:

4 5 6 7 80

1

2

3

4

5

6

Advantageous Inequity (AI)

Age in Years

Rej

ecti

ons

Our Aim:

Analyze similar data from Peru and India, and compare the results with the U.S. sample

With SPSS, we will investigate:

If increased age relates to more rejections of DI in both of these countries

If the same shift exists at age 8, for rejecting AI, in both countries

If these countries differ in number of DI and AI rejections

Data Analysis

We will conduct 6 independent t-tests today:

These will tell us if two groups are significantly different from one another

This way we can compare ages, and we can compare cultures, in terms of number of rejections

We have two age groups (6-7 vs. 8-9)

We have two cultures (India vs. Peru)

First t-test:

India

6-7 Years 8-9 Years

# DI Trials Rejected

Second t-test:

India

6-7 Years 8-9 Years

# AI Trials Rejected

Third t-test:

Peru

6-7 Years 8-9 Years

# DI Trials Rejected

Fourth t-test:

Peru

6-7 Years 8-9 Years

# AI Trials Rejected

Fifth t-test:

Total #DI Rejections

India Peru

Sixth t-test:

Total #AI Rejections

India Peru

Using SPSS:

Right-click and save the Data File to the Desktop Do not try to open from here

Dbl-click WebFX Applications on Desktop Look for SPSS folder

Dbl-click SPSS icon

“Open an Existing Data Source” “Look in”: Desktop

• Select the Data file

Doing a t-test in SPSS

At the top, click “Analyze” “Compare

Means” “Independent

Samples t-test”

Doing a t-test in SPSS

Select your “Test Variable” from the list, and click the top arrow

Select your “Grouping Variable” from the list, and click the bottom arrow

*Handout tells you which to select

Doing a t-test in SPSS

Click “Define Groups”

Enter in the values, as directed on handout

What to Note in SPSS output

Today:

Complete the handout, reporting your Results from the 6 t-tests

Submit before leaving