CHYS 2P52 Lecture Notes - Lecture 6: Central Tendency, Skewness, Kurtosis
7 Dec 2017
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Act one: between subject designs: what is their motivation, comparing reading disability with a child who does not have a reading disability, same perceived effort, sense of competence drastically different and leads to lower interest. Between subjects: different people in each group (reading disability or non-reading disability) Between subject design: each participant is in only one condition individual differences, confounds, and high variance (both receive the same intervention, but participants bring different things to the conditions. Different scores from the start) each person is only measured once on outcome score independent of others" scores. Within subject designs: everyone is part of every condition controls variance. Dependant measure is repeated on everyone once per condition score dependence. Independent variable or confound: control of assignment bias. Eliminate the variability: making sample smaller but more similar (harms generalizability. Three things to understand a sample of scores: distribution/shape, central tendency (number that the middle looks like)
