PSY 418 Chapter Notes - Chapter 3: Inter-Rater Reliability, Skewness, Normal Distribution
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One with only a few extremely low values will be skewed to the left: skewed to the right = positive skew, skewed to the left = negative skew. If the tail of the dist(cid:396)i(cid:271)utio(cid:374) e(cid:454)te(cid:374)ds to(cid:449)a(cid:396)ds the (cid:396)ight it"s a positi(cid:448)e ske(cid:449), a(cid:374)d (cid:448)i(cid:272)e (cid:448)e(cid:396)sa. A special curve: a symmetrical curve can have an infinite number of shapes, normal curve, symmetrical, 50% of the cases under the curve are found above the mean, and. Look at operationalizing happiness: observational measures, operationalizes a variable by recording observable behaviors or physical traces of behaviors, ex. Interval scale applies to the numerals of a quantitative variable that meet two conditions; 1. The numerals represent equal intervals between levels and 2. Iq test, body temp: ratio scale applies when the numerals of a quantitative variable have e(cid:395)ual i(cid:374)te(cid:396)(cid:448)als a(cid:374)d (cid:449)he(cid:374) the (cid:448)alue of 0 t(cid:396)ul(cid:455) (cid:373)ea(cid:374)s (cid:862)(cid:374)othi(cid:374)g(cid:863, ex.
