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Gygi, Jasmin T.; Ledermann, Thomas; Grob, Alexander; Rudaz, Myriam; Hagmann-von Arx, Priska (2018). The Reynolds Intellectual Assessment Scales (RIAS): Measurement and structural invariance across four language groups. Journal of psychoeducational assessment, 37(5), pp. 590-602. Sage 10.1177/0734282918780565
