Chi | chi square trend test spss
>Hi(again),>>ItseemsthatSPSSdoesntoperatewithcommonchi-squaretestfortrend->probablyitdoes,thoughIhaventfiguredoutyetjusthow.Icanthinkof4simpletestsImightexpectfortrend,rightoffthebat,andSPSSoffersthreeofthem.Useeithernonparametriccorrelation,orusetheManteltest(inCrosstabs).-Mantelscoresthecategoriesbyconsecutiveintegers.-Spearmanscoresthecategoriesbyaverage-rank.-Kendalleffectivelyscoresthecategoriesbyaverage-rank(Ibelieveitworksoutthatway)andpenalizesdeviationsbyalinear(swap)cou...
> Hi (again),> > It seems that SPSS doesnt operate with common chi-square test for trend -> probably it does, though I havent figured out yet just how.
I can think of 4 simple tests I might expect for trend, right off the bat, and SPSS offers three of them. Use either nonparametriccorrelation, or use the Mantel test (in Crosstabs).- Mantel scores the categories by consecutive integers.- Spearman scores the categories by average-rank.- Kendall effectively scores the categories by average-rank (I believe it works out that way) and penalizes deviations by a linear (swap) count, instead of by squared differences.
> I am having 2 x 4 table (the latter being ordered). I tried to calculate> chi-square for trend manually, and it was pretty near the "linear-by-linear> association"-value (in crosstabs output) both of them having 1 d.f. giving> pretty much the same p-value. Are those two entities identical, i.e. is> linear-by-linear association SPSS te...