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Cautionary Note about R 2
- T. O. Kvålseth
- Mathematics
- 1 November 1985
Abstract The coefficient of determination (R 2) is perhaps the single most extensively used measure of goodness of fit for regression models. It is also widely misused. The primary source of the…
Entropy and Correlation: Some Comments
- T. O. Kvålseth
- Computer ScienceIEEE Transactions on Systems, Man, and…
- 1 May 1987
For measuring the degree of association or correlation between two nominal variables, a measure based on informational entropy is presented as being preferable to that proposed recently by Horibe…
Note on Cohen's Kappa
- T. O. Kvålseth
- Psychology
- 1 August 1989
Cohen's Kappa is a measure of the over-all agreement between two raters classifying items into a given set of categories. This communication describes a simple computational method of determining the…
Evenness indices once again: critical analysis of properties
- T. O. Kvålseth
- Environmental ScienceSpringerPlus
- 16 May 2015
TLDR
Coefficients of Variation for Nominal and Ordinal Categorical Data
- T. O. Kvålseth
- Mathematics
- 1 June 1995
Various measures of variation for categorical data which have been introduced suffer from the limitation that their numerical values generally appear to be unreasonable. This may cause their use to…
Absolute judgment for one- and two-dimensional stimuli embedded in Gaussian noise.
- T. O. Kvålseth
- PsychologyErgonomics
- 1 March 1977
TLDR
On Normalized Mutual Information: Measure Derivations and Properties
- T. O. Kvålseth
- MathematicsEntropy
- 22 November 2017
TLDR
Note on biological diversity, evenness, and homogeneity measures
- T. O. Kvålseth
- Environmental Science
- 1 October 1991
TLDR
An alternative to Fitts’ law
- T. O. Kvålseth
- Law
- 1 November 1980
A new power law of movement time for motor control tasks is proposed as an alternative to the classical Fitts’ law. A reanalysis of Fitts’ original data indicates that this power law may provide…
Distribution of Movement Time in a Target-Aiming Task
- T. O. Kvålseth
- PsychologyPerceptual and motor skills
- 1 October 1976
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