TY - RPRT TI - On change scores and correlation. AU - R F GARSIDE PY - 1962 DO - 10.1002/1097-4679(196201)18:1<92::aid-jclp2270180130>3.0.co;2-e UR - https://pubmed.ncbi.nlm.nih.gov/13897093/ ID - 13897093 ER -