PSY 2110 Lecture Notes - Lecture 2: Scale Of Temperature
23 Sep 2016
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Scales of measurement the set of possible numbers that may be obtained by the measurement process: nominal. Don"t know actual numbers, how much more/how much less. Can have a score of zero, but it is not an absolute zero. Absolute zero nothing there, absence of characteristics. Ex: test scores, number of pets you have. Variable anything that can take on more than one specific value. Discrete variable results in a whole number. Dichotomous something that results in two amounts or two categories. Ex: weight allows for decimals, but could be a whole number. Independent variable the variable manipulated by the experimenter. Control group gets treated like experimental group, but gets nothing of the independent variable. Summation sign to sum, to add the sum of . X2 = square each x value, then sum ( x2) = sum all x values, then square the total ( x)( y) = sum all x values, sum all y values, multiply.
