Psychometrics - Lecture 1 - Computing percentile ranks

[@simbarashewill]

Just discovered these videos. Thanks very much Doc!

[@mery6744]

thank you sm prof

[@XingyueH]

Find it hard to read textbooks myself and thanks so much for these videos!

[@desyprasetya8224]

Thank you so much for making these videos!

[@s.k.4399]

Kindly recommend us some books on psychometrics, please.