PSY BEH 11A Lecture 10: psybeh11awk5lec2
14 Nov 2018
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Will start chapter 5 in lecture next week but will not be on midterm. Lacked systematic method to ask questions of nature until about 400 500 years ago. Ask the question & investigate in way that gets an answer. For example -> would look at exam scores. Taking the average of the test scores. In good scientific practice you specify criterion before you collect data. Suppose that women on average score 35 & men score on average 34. 8. Is that difference big enough to say that there is a difference in aptitude or is it just noise . On what grounds would you make that decision. For making inferences about the world & trying to answer question. Four measurement scales -> four kinds of data that you might get in experiment. Scale in which assignment of numbers of arbitrary. Ex. suppose interested in majors on campus & how many students are in each major.
