简述典型实验法的优点与缺点。
实验法的优点:一是可以把实验变量与它带来的影响分离开来,二是由于实验有明确的范围限制,省时、省力、省钱,并可重复实验,增强了效度和信度。实验法的不足:实验环境的人为性;实验过程的反应性;实验对象的有限性;实验结果的适应性。
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