PSYB01H3 Lecture Notes - Research On The Effects Of Violence In Mass Media, Multivariate Analysis Of Variance, Analysis Of Variance
Document Summary
Descriptive = describe variables in a study. Inferential = estimate characteristics of a population from a random sample. Used to test hypotheses about the relationship between variables. Shows the number of cases and/or the percentage of cases who receive each possible score on a variable. Mutually exclusive- if ppl in one category cant be in other eg male and female. Exhaustive- everyone fits into one of these categories Displays a frequency distribution of a quantitative variable. Qualitative data: categories-discontinuous, can have bars for each group bit cant draw line graph-gaps order doesn"t matter b/c data is nominal not ordinal. Frequency how often a score of 1. 2. 3. 4 for eg occur. Begin the graph of a quantitative variable at 0 on both axes. The two axes should be of approximately equal length. Can make a non statistically difference look like it is twice as much for eg, if cut off too high therefore need to start at 0 for both axes.
