PSYC 102 Lecture Notes - Lecture 2: Confounding, Repeated Measures Design, Statistical Inference
15 Mar 2016
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Document Summary
Science: global approach, steps in the scientific process. Test hypothesis: design study, collect data. Test again (new?) hypotheses: (you or others = replications?) Humans in research: guiding principles (tri-council policy) Descriptive research: accurate & systematic measurement, increases awareness of multiple variables. Correlational research: association b/w variables, predict relations b/w variables. Experimental research: establish cause & effect relations. Naturalistic observation: watching people in their natural surroundings, unobtrusive. The pop large number of people. Random sampling pick people from the pop. +/-/0 strength of correlation is strongest when value is close to 1. A research method in which the investigator manipulates a variable under controlled conditions & observes whether any changes occur in a second variable. Vary it independently of other factors to see if it had an effect on the other variable of interest (dv) Should vary as a result of the impact of the iv. Control of all other factors: operational definitions.
