求心理学研究文章（英文版）

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你可以参考这个网站，非常不错http://en.wikipedia.org/wiki/Psychology#Controlled_experiments
下面是其中的一篇文章，在首页就可以看到一些文章的超链接

Controlled experiments
Main article: Experiment
Experimental psychological research is conducted in a laboratory under controlled conditions. This method of research relies on the application of the scientific method to understand behavior. Experiments use several types of measurements, including rate of response, reaction time, and various psychometric measurements. Experiments are designed to test specific hypotheses (deductive approach) or evaluate functional relationships (inductive approach). They are important for psychological research because they allow researchers to establish causal relationships between different aspects of behavior and the environment. Importantly, in an experiment, one or more variables