9.6 IRMP Notes.pdf - ● Theory ○ Properties matter ​testability parsimony falsifiability ● Data(and data analysis ○ Test our theories to make

9.6 IRMP Notes.pdf - ● Theory ○ Properties matter...

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Theory Properties matter: testability, parsimony, falsifiability Data (and data analysis) Test our theories, to make progress Quantitative or qualitative The big debate: strengths and weaknesses of approaches Types of quant data Levels of measurement: nominal/categorical, ordinal, interval/continuous Theories A theory is a conjecture about the causes of some phenomena of interest A bit more concrete, trying to explain something and these are the causes Ie. crime fell in the 1990s due to the legalization of abortion in the 1970s- Stephen Lennox The US and the UK have 2 main political parties as a consequence of the electoral system Individuals best adapted to the environment are more likely to survive, and breed-Charles Darwin Theory makes us a science Interested in generating and testing theories Which separates us from journalism: that’s just reporting the facts! Theory separates us Theory is ‘positive’ about how the world is: All about the way the world is or is organized Not how it ought to be ‘ normative Theory is tested with empirical evidence , nothing else! Theories are about causation Is casual : there is something that needs to be explained ( dependent variable) The thing we theorize does the explaining
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