PSYA01H3 Lecture 7: Lecture 7 notes
Document Summary
Larger challenge of science is that we are interested in concepts that we know are real but are hard to define, but we have to define them to do proper experiments. Perhaps prejudice arises from low self esteem (german economy example -> response to above question) Researcher slide experiment example to show correlations between. Validity -> refers to whether one believes that a given operational definition really reflects the theoretical entity it is meant to represent. Belief in validity is increased by 1) manipulation checks and 2) convergence from the use of other operational definitions. Reliability -> refers to how accurately the dependent variable can be measured (tape measure example) These 2 things are how good your measurement is. Confound -> is said to be present when some other variable other than the independent variable also varies across groupwhen this happens, cause-effect relations become ambiguous. Heads or tails way of choosing your participants.
