Transcript 02Sociological Investigation

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15 Quest Fields – all seats full
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What factors are related to teen pregnancies?
What is the effect on the mother of teen
pregnancies?
What would be the most effective
contraceptive distribution method in schools?
◦ What problems would arise with contraceptive
distribution?
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Reducing teen pregnancies
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Dependent variables?
Independent variables?
Operational definitions?
Measurement of variables
◦ Reliability
◦ Validity
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Representative sample
Biased sample
Random sample
◦ Simple
◦ Stratified
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Self selected sample
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Surveys
Observational designs
Experiments
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Closed ended questions?
Open ended questions?
Criteria for good questions?
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Statistical analysis
Correlation
Causation