PSYB01H3 Lecture Notes - Lecture 5: Confounding, General Motors Ev1, Internal Validity
Document Summary
Lecture 5 research methods studying behaviour (con"t) Temporal precedence (poverty must come first before mental illness occurs) Factors from poverty that causes mental illness (stress, cognitive functions, etc) Look at things as they are, goes out and sample the population, determines whether the variables relate to each other (correlation) Used to measure real life situations and sample a targeted population/group (similar, socio-economic status, demographic, etc) Manipulates variables to collect data and observe from it. >give out survey to see how much people exercise, what are their cholesterol level, etc. >assign people to exercise condition (experimental group) and non-exercise condition (control group) Grounded theory (interview people and create a theoretical framework based on data collected) Relationships studied by making observations or measuring variables as they exist naturally. Iv can be observed in a natural context. Allows us to study participant variables that cannot be manipulated. Difficult to control many aspects of the situation.