大学生形成析取概念的假设检验策略研究

A STUDY OF HYPOTHESIS-TESTING STRATEGIESOF DISJUNCTIVE CONCEPTS

运用布鲁纳等人设计的用以研究合取概念的实验材料，研究了大学生形成合取、维度内析取、维度间析取等人工概念的假设检验策略。结果表明，大学生倾向于优先使用单维检验策略（包括单维变化策略和单维肯定策略）。这种策略有利于很快解决合取问题和维度内析取问题，却不利于维度间析取任务的完成，因此大学生解决维度间析取的成功率显著低于合取和维度内析取．

With material of artificial concept designed by Bruner et al (1956) we testedhypothesis--testing strategies in forming conjunctive and disjunctive concepts withundergraduate students. The results showed that undergraduates tended to usesingle-dimesion testing strategy (including single--dimesion --changing strategy andsingle--dimesion-positive strategy ), and the strategy facilitated tated conjuction task solvingand within--dimention disjunction task solving, but not inter--dimention disjunction tasksolving.