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Lab 4: Data Analysis

Lab 4: Data Analysis. Comparing rejections of inequity In India and Peru. Refresher:. 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.

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Lab 4: Data Analysis

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  1. Lab 4: Data Analysis Comparing rejections of inequity In India and Peru

  2. Refresher: 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

  3. 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

  4. Blake & McAuliffe’s findings

  5. Blake & McAuliffe’s findings:

  6. 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

  7. 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)

  8. First t-test:

  9. Second t-test:

  10. Third t-test:

  11. Fourth t-test:

  12. Fifth t-test:

  13. Sixth t-test:

  14. 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

  15. Doing a t-test in SPSS • At the top, click “Analyze” • “Compare Means” • “Independent Samples t-test”

  16. 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

  17. Doing a t-test in SPSS Click “Define Groups” Enter in the values, as directed on handout

  18. What to Note in SPSS output

  19. Today: Complete the handout, reporting your Results from the 6 t-tests Submit before leaving

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