Crash Course on Basic Statistics

2.4 Validity How well a test or rating scale measures what is supposed to measure: ... Predictive validity: the ability to draw infer-ences about some event in the future. 2.5 Probability Distributions? Statistical inference relies on making assump-tions about the way data is distributed, trans- ... longitudinal study (a study in which subjects ...

  Statistics, Validity, Predictive, Longitudinal, Predictive validity