The chair of the Department of Psychology wants to examine if there is a signifi

Question

The chair of the Department of Psychology wants to examine if there is a significant difference in students' understanding of basic concepts in Psychology across different areas in Psychology. He recruits 250 psychology students who are given four lists of words to define. List I consists of words used in Social Psychology, list 2 contains words used in Developmental Psychology, list 3 is from Physiological Psychology and list 4 is from Quantitative Psychology. The number of incorrect answers is recorded. What is the dependent variable? What are the factors and the levels of each factor*? What is the design of this experiment?

Explanation / Answer

1) dependent variable is the number of incorrect answer is recorded.

2) factor 1 : position of seating of the students( level : 1 for seating frant, 2 : middile , 3: back)

factor 2 : understanding power of a student. based on previous result of the student in there own subject.(level: 1 : above 80, 2: above 60, 3: above 40, 4 : 0 to 40)

factor 3 : pre-knowledge is present or not for this student ( level : 1 : yes, 2 : no)

3 ) Design of experiments (DOE) is a systematic method to determine the relationship between factors affecting a process and the output( here incorrect answer ) of that process of experiment . In other words, it is used to find cause-and-effect relationships. This information is needed to manage process inputs in order to optimize what we acctually require.

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