PSYB07H3 Lecture Notes - Lecture 2: First-Person Shooter, Sample Size Determination, Internal Validity
Document Summary
Math review: order of operations, bedmas. Descriptive vs inferential stats: descriptive stats, describe a data set, can be calculated for a population or a sample, calculating statistics or parameters, sample, statistics. Inferential stats: make conclusions about populations from samples, estimating population parameters just using sample statistics, sample population, statistics parameters (don"t have to infer) Representative: external validity, degree to which the sample reflects the population, sample size, random sampling, every member in the population has an equal chance of being selected, not always truly random. First person shooter game and spatial attention. Spatial attention: gamers vs non-gamers, male vs female. Internal validity: the degree to which an experiment measures what it"s supposed to. Random assignment: assignment to groups such that every member of the sample has an equal chance of being selected for each group, non-gamers video game training. Keeners: what we would say is compromised (external or internal validity), external because not representative of the actual thing.
