PSYCH291 Chapter Notes - Chapter 3: Internal Validity, Random Assignment, Type I And Type Ii Errors
16 Dec 2016
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Variables something that varies, so it must have at least two levels, or values constant- something that could potentially vary but that has only one level in the study in question. E. g. height, weight, age, iq, gender, hair colour. Manipulated researcher controls, usually by assigning participants to the different levels of that variable e. g. gender could not be manipulated, other variables could not be manipulated because it would be unethical to do so. ** manipulated => measured, but measured !=> manipulated the independent variable. Conceptual variables/ construct abstract concepts such as shyness or intelligence must be defined at the theoretical level, called conceptual definitions. Operational variables, operationalization turn a concept of interest into a measured or manipulated variable e. g. shyness => shyness assessment scale (mildly, moderately, very) Try out the html to pdf api pdfcrowd. com. Association claim describes the actual rate or degree of a variable.
