PSYC 406 Lecture Notes - Lecture 3: Multiple Comparisons Problem, Impulsivity, Observational Error
30 Sep 2016
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A test is a standardized procedure for measuring behaviour. I. e. , when the procedures for administering a test are the same across examiners and settings. It just means when the procedures are the same. You really want to make sure the procedures are the same. Standardized experiment: 100 college students, same experimenter and room, temperature, lighting, chair, table, instructions, same measures in same order, etc. 50 get plate of warm cookies while testing- standardized manipulation- same amount, positions, warmth. The point is that if everything is the same except the cookies- the diff. in the group would assume to be because of the cookies. Some random errors but if it isn"t standardized you do not know how to attribute the differences. The same kinds of cookies in the same position, same number of chocolate chips. Differences between groups can be attributed to cookies because everything else is the same. We have a fairly high confidence of this.
