nonparamtric

  1. S

    Help interpreting a statistical symbol "Φ"

    Hello, Please excuse my ignorance - novice. I am currently reading a paper - 'Non-parametric estimators of effect size' by Larry V. Hedges and Ingram Olkin. The problem is that i can not understand this Symbol 'Φ'. Could someone please tell me what this means is statistics. Yes,I have...