Tuesday, 23 September 2008
Thursday, 18 September 2008
likert
likert: "The standard deviation can be used as a measure of consistency.
A pattern like the completely polarized one has the highest standard deviation. The highest possible standard deviation achievable for a 5-point scale on 1,2,3,4,5 is given by the distribution {.5,0,0,0,.5}; the value of sigma for this distribution is 2. As a rough guide, 5-point Likert scale response distributions with sigma less than 1 could be called consistent; with sigma more than 1, inconsistent."
A pattern like the completely polarized one has the highest standard deviation. The highest possible standard deviation achievable for a 5-point scale on 1,2,3,4,5 is given by the distribution {.5,0,0,0,.5}; the value of sigma for this distribution is 2. As a rough guide, 5-point Likert scale response distributions with sigma less than 1 could be called consistent; with sigma more than 1, inconsistent."
Wednesday, 17 September 2008
Standard deviation - Wikipedia, the free encyclopedia
Standard deviation - Wikipedia, the free encyclopedia: "have an average temperature of 15 °C, it's helpful to understand that the range for cities near the coast is smaller than for cities inland, which clarifies that, while the average is similar, the chance for variation is greater inland than near the coast."
Likert scale - Wikipedia, the free encyclopedia
Likert scale - Wikipedia, the free encyclopedia: "Do Data Characteristics Change According to the number of scale points used? An experiment using 5-point, 7-point and 10-point scales"
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