Revisar coeficiente de correlacion biserial

SICSresearch / IRTpp_old

Item Response Theory Software made in Cpp and R

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Open KaPerozo opened 9 years ago

KaPerozo commented 9 years ago

library(IRTpp) a<-simulateTest(model="2PL",items=10,individuals=2000) b<-a$test[[1]] a$test cronbach(b) c<-rowSums(b)

biserial.cor(c,b[,7]) AA <- NULL

for(i in 1:10){ AA[i]<-biserial.cor(c,b[,i]) }

jcliberatol commented 9 years ago

Los coeficientes deberian dar positivos ? , pero dan negativos.