PSY201H1 Final: Exam Study Sheet - includes alternative method for heterogeneity variance
Document Summary
Statistics:mathematical procedures organiz,summariz,interpret info;communicate results(standardized techs in scientific community),answ qs of study"s hypothesis,conclusions from results ; if noisy:many dif result ; correlational methods:measur 2 vars for each indiv, no explanation + [directionality] of causality ; Experimental & nonexperimental methods: comparing 2 grps of scores, determine cause&effect,use1 var define grp&measure2nd var obtain scores for each grp;expt attempts control all other vars/confounds;show changin value of. Antecedent conditns manip prior to observin change othr var; Class intervals in table show apparent limits,measuring var requires set of cats(scale of measurmnt)& process to classifies each indiv into 1 cat. Nominal: categorical,cats w dif names,measurements label+ categorize observations to #s, no dir"n or size of dif ; Interval: ordered intervals of exactly same size, equal dif in magnitudes,size,dir"n of dif,0 arbitrary, addition&subtraction not multiplication ; ratio: interval,absolute0,dir"n&magnitude of difs,ratio comparisons,most physical measurements ; Percentage = p(100) = f/n x (100); percentage column.
