Probation Officer Paper II: Psychology · 3 Quantitative Analysis and Psychological Measurement · APPSC Paper I

3.1 Quantitative analysis and psychological measurement notes

1 notes, in reading order.

  1. 3.1.1Measurement in psychology: levels of measurement, statistical concepts, reliability, validity and norms

    Psychological measurement assigns numbers by rules on four levels (nominal, ordinal, interval, ratio); statistics then tests hypotheses while risking Type I and Type II errors; and a good psychological test is built step by step (items, try-out, item analysis) until it is reliable (consistent), valid (measures what it claims) and has norms so that a raw score can be read as a percentile or a standard score (z, T, stanine).

    Standard · 18 min · Read here

Practise Quantitative analysis and psychological measurement. Questions with answers explained, from the same topics.

Practise in the app Quantitative Analysis and Psychological Measurement questions

Medha AI is an independent preparation service. It is not affiliated with, endorsed by or connected to APPSC, TSPSC, MPSC, UPSC or any other commission or government body.