PSYCH 100B Lecture Notes - Lecture 3: Face Validity, Construct Validity, Internal Validity
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E. g. running a race rank into ordinal categories of 1st, 2nd, 3rd, etc. Doesn"t indicate how far apart the runners were. E. g. running a race ranking but also tells us how far apart the runners were. 1 to 10 scale of how aggressive a child was. Standardization of numbers from one to the next but not the same as true numbers. Qualitative assessment that is mapped onto a numerical scale. A person with an iq of 100 is not necessarily twice as smart as someone with an iq of 50. E. g. running a race in 0 seconds means that it took no time at all. E. g. quantifying the number of hits and name-calls. Choose the type of measure, scale of measurement, and be specific about how to do it. Two different experimenters could come up with very different ways of measuring.
