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"
Tuesday, 16 September 2008
Infopolis2- Ergonomics Methods- Task Analysis Methods: Interview Techniques
Infopolis2- Ergonomics Methods- Task Analysis Methods: Interview Techniques: "e range of respondents' reactions to these issues is not known or suspected to be incomplete. This type of interview is mostly applicable in situations where both qualitati"
Infopolis2- Ergonomics Methods- Task Analysis Methods: Interview Techniques
Infopolis2- Ergonomics Methods- Task Analysis Methods: Interview Techniques: "e range of respondents' reactions to these issues is not known or suspected to be incomplete. This type of interview is mostly applicable in situations where both qualitati"
Sunday, 14 September 2008
Thursday, 11 September 2008
The Early History of Smalltalk
The Early History of Smalltalk: "ge, the ACM copyright notice and the
title of the publication and its date appear, and notice is given
that copying is by permission of the Association for Computing
Machinery. To copy otherwise, or to republish, requires a fee
and/or specific permission."
title of the publication and its date appear, and notice is given
that copying is by permission of the Association for Computing
Machinery. To copy otherwise, or to republish, requires a fee
and/or specific permission."
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