Psychology 2075 Chapter Notes - Chapter 3: Inter-Rater Reliability, Snowball Sampling, Content Analysis
22 Dec 2016
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Behavioural measures: direct observation: scientist directly observes behaviour being studied, eye-tracking: device measures participant"s point of gaze over time. Relative strength of association an individual makes between different pairs of concepts. React more quickly to concepts we associate strongly. Biological measures: genital measures of sexual response. Thermography: assessing temperature change: mri & fmri. Method for obtaining a sample is adopted. People in sample are contacted and asked to participate. Population: group of people a researcher wants to study and make inferences about. Probability sampling: each member of the population has a known probability of being. Sample: part of a population included in the sample. Random sampling: each member of the population has an equal change of being included in the sample. Stratified random sampling: population is divided into groups and their random sampling occurs in each group. People will refuse to participate in survey, difficult to have a random sample.
