PSYC 320 Lecture Notes - Lecture 6: John Money, Standard Deviation, Fetus
Document Summary
Quasi-experimental designs: are not considered experiments due to the inability of the experimenter to manipulate variables; therefore causation is not able to be implied. R^2=0. 16 *100 = 16% of variance in one variable is accounted for by the second variable. These girls identified as being girls; their mothers said that they were tomboys. Tests showed that these females were masculine: possible explanations: being told at birth these daughters conditions, the parents may have treated their daughters differently. Enables us to take the result of many studies and combine them to make a single stat. Deviation from the mean: example: a group of researchers examined differences between males and females in nose length. They found the mean nose length of males was 2. 5 inches and the mean nose length of females was 2 inches. The standard deviation for the combined sample was 0. 6 inches. If d= +/- 0. 20, there is a small effect size.
