PSYC 210 Lecture Notes - Lecture 16: Central Tendency, Qualitative Property, Abscissa And Ordinate

• School: Simon Fraser University
• Department: Psychology
• Course: PSYC 210
• Professor: Snjezana Huerta

Document Summary

Measure of location includes ve parts: max, min, mean, mode and median. Interpolate (cid:3576) (cid:2439)(cid:3726)(cid:2241)(cid:1271)(cid:1275)(cid:3524)(cid:2561)(cid:1278)(cid:7413) (cid:7054)(cid:1293)median(cid:2666)(cid:3598)(cid:1721)(cid:7566)(cid:7054)(cid:1275)(cid:3524)(cid:2561)(cid:1172) not interpolate (cid:3576) (cid:2439)(cid:3726)(cid:2241)(cid:1271)(cid:1275)(cid:3524)(cid:2561)(cid:1278)(cid:7413) (cid:7054)(cid:1293)median = (x1+x2)/2. Measure of discretion describe the spread of the data. It includes range, iqr, some of squared deviations, variance,sd and mean absolute deviation. Deviation scores: the distance of each score in a give set of scores from the mean of that set of scores. (xi-mean: sum of squared deviation: the distance of each point from the mean, squared. Ssx: variance: the degree to which the points in a distribution of scores vary, on average, from the mean, squared. Sx^2: sd: the degree to which the points in a distribution of scores vary, on average, from the mean, in original units of the variable. Sx: m. a. d: doesn"t require equal unit; does require ordered data. Categorical data: with unequal unit and an arbitrary((cid:1393)(cid:3130)(cid:4913)) order. > measures of shape: number of distinct peaks (e. g. modality).