Howard, George S.Obledo, Fernando H.Cole, David A.Maxwell, Scott E.2011-03-162011-03-161983Howard, George S, Obledo, Fernando H, Cole, David A & Maxwell, Scott E. (1983). Linked raters' judgments: Combating problems of statistical conclusion validity. Applied Psychological Measurement, 7, 57-62. doi:10.1177/014662168300700108doi:10.1177/014662168300700108https://hdl.handle.net/11299/101625The traditional procedure for obtaining judged ratings, to ascertain if treatment-related change has occurred, involves the randomization of the materials to be rated. An alternative approach (linked judgments) is investigated as a potential solution to certain instrumentation- related threats to statistical conclusion validity of the incumbent rating procedure. Data from a weight reduction study are presented which suggest that linked raters’ judgments provide both a more powerful and a more valid index of treatment effectiveness than the traditional procedure.enArticle