POSC300 Study Guide - Final Guide: Confidence Interval, Standard Score, Technology In Revelation Space
29 Aug 2016
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Causation / correlation be clear and specific in the kind of relationship you are discussing (undefined = relationship) Measures of central tendency mean, median, mode. Dispersion measure of values around the difference of a typical case. T distribution special case of normal distribution (changes/shape and properties with size of sample) Confidence limit/intervals parts of calculation (identify), what parts represent, why they are included: how accurate statistics are, probability estimates of the parameter value in terms of its occurrence between constructed boundaries. Hypothesis test z test, dependent samples t test, difference t test (no independent samples t); focus on calculation; think conceptually about the test; concept to an operationalized variable; logic (why/what) Correlation coefficient r *make sure the question asks to calculate the correlation. R squared square of r; for interpreting r square it is the % of variation in the dependent variable explained by the independent variable.
