共 50 条
- [31] EFFECT OF TASK-DIFFICULTY AND COGNITIVE STRATEGY ON ERPS ELECTROENCEPHALOGRAPHY AND CLINICAL NEUROPHYSIOLOGY, 1985, 61 (03): : S170 - S170
- [32] EFFECTS OF CONCEPTUAL TASK-DIFFICULTY ON GENERALIZED PERSISTENCE AMERICAN JOURNAL OF PSYCHOLOGY, 1980, 93 (02): : 285 - 298
- [35] TASK-DIFFICULTY EFFECTS AS THEY RELATE TO EFFORT CALCULATIONS ZEITSCHRIFT FUR EXPERIMENTELLE UND ANGEWANDTE PSYCHOLOGIE, 1982, 29 (03): : 386 - 396
- [37] TASK-DIFFICULTY, SUBJECT IMPROVEMENT AND MOTIVATION - REPLY PSYCHOLOGIE IN ERZIEHUNG UND UNTERRICHT, 1979, 26 (04): : 230 - 234