PSYCH253 Lecture Notes - Lecture 1: Observer-Expectancy Effect, Demand Characteristics, Social Desirability Bias
Document Summary
We don"t just store information: our own personal values and judgements in uence how we observe the world/our own perception (eg. when driving, he cut me off vs he merged late) Science objectively studies our naive predictions, produce formal theories/models for this information that aren"t clouded by our preconceived judgements. Sources of error: random error vs systematic error, random error (wind blowing) vs systematic error (table tilted, both contribute to variability in our measurements. Observations = sample size: samples can have lots of people. Or samples can have lots of trails: in a within-subjects design. Less than 5% of results is attributed to chance. All crows i have ever observed are black. Therefore this is proof that all crows are. Logic fallacy: it is likely that all crows are black. From the crows i have observed, there is a less than 5% chance that i might be wrong, and that all crows are not black.
