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Citation: Jf. Beckmann et H. Dobat, On validating the diagnosis of intellectual learning ability, Z PADAGOG P, 14(2-3), 2000, pp. 96-105

Authors: Beckmann, JF

Citation: Jf. Beckmann, Differential effects on latencies in solving reasoning items, DIAGNOSTICA, 46(3), 2000, pp. 124-129

Authors: Guthke, J Beckmann, JF

Citation: J. Guthke et Jf. Beckmann, The learning test concept and its application in practice, ADV COGN ED, 6, 2000, pp. 17-69

Authors: Beckmann, JF Guthke, J

Citation: Jf. Beckmann et J. Guthke, The Berliner Intelligenzstruktur-Test (BIS), Form 4., DIAGNOSTICA, 45(1), 1999, pp. 56-61