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Revisar coeficiente de correlacion biserial #4

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KaPerozo opened this issue Jul 13, 2015 · 1 comment

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KaPerozo commented Jul 13, 2015

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 assigned KaPerozo

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jcliberatol commented Jul 13, 2015

Los coeficientes deberian dar positivos ? , pero dan negativos.

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