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SOCB05H3 Lecture Notes - Windsor Star, Ex Post Facto Law, Breastfeeding

Course Code
Ann Mullen

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October 28, 2010
*Next assignment:
- design an experiment
- today’s lecture helps prepare for assignment
- no collecting or analyzing data and not actually run an experiment
- explain, independent and dependent variable, stimulus, hypothesis and results to expect
- Rubric with TAs!
Experimental Design
Experiments are the best way to isolate and make a causal argument. For surveys, there are always
other factors that may affect results
The Media Report
Ex: The Windsor Star. Breast feeding benefits mothers
Educational Implications of Stereotype Threat
Research by: Michael Inzlicht
Stereotype Threat (ST)
- ST is the discomfort individuals feel when they are at risk of confirming a negative stereotype of their
Ex. The only black guy in a group of whites
- This discomfort can results in poor intellectual experiences (ethnicity written on top or bottom of tests)
What is the relation between stereotype threat and being outnumbered?
Math test with groups of three.
Basic Features of the Classic Experiment:
1. Tests effect of independent variable (stimulus) on dependent variable
a. Ex: breast/bottle feeding is independent
b. Independent and dependent variable has to be operationally defined (how is it defined,
how are you going to measure it)
2. Pre-testing and Post-testing
a. Subjects are measured on their dependent variable before you give them the stimulus.
Then you measure the dependent variable again to see if it has changed
b. In breast-feeding example, there was no pre-test, only post-test
c. Maybe participants are more prepared or know what to expect and does better in post-
test than pre-test. So pre-testing may throw off the results in post-test; confusion
between stimulus or pre-tests is affecting
3. Experimental and Control Groups
a. Always have control groups that does not give stimulus
b. Hawthorne. If there had been a control group; one that is observed and has lights on
and one that is observed and has lights off.
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