PSYB70H3 Study Guide - Midterm Guide: Type I And Type Ii Errors, Statistical Inference, Confidence Interval
Document Summary
Statistical validity: the extent to which statistical conclusions derived from a study are accurate and reasonable. Interpreting association: bar graph: visualization of the differences between groups (often expressed as mean differences, possible correlation: the two variables co-vary in the same direction. Interpreting correlation coefficients: correlation coefficient - a numerical representation of the correlation that caries between. Samples vs populations: there"s trade off, each sample of data is pulled from a larger population of interest, every sample will produce a slightly different estimate of the effect. Null hypothesis significance testing (nhst) uses a series of steps to decide whether a result is extreme enough to reject the assumption that the sample comes from a population where there is no effect. If an estimate is within the confidence interval of the null, it is too consistent with the null to assume otherwise.
