iccde: Computation of Double-Entry Intraclass Correlation

Description Usage Arguments Value Author(s) References Examples

Description

The function computes the profile similarity measure double-entry intraclass correlation. It is a more precise index of the agreement of two empirically observed profiles than the often used intraclass correlation or profile correlation. Profiles comprising correlations are transformed according to the Fisher z transformation before the index is calculated. In the case of score data with different scale formats (e.g., if the profile contains different IQ or a variety of personality tests), it is recommended to z-standardize the scores before entering into the function. For details, see Furr (2010) <doi:10.1080/00223890903379134> or McCrae (2008) <doi:10.1080/00223890701845104>.

Usage

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icc.de(prof1, prof2, input = c("cor", "score"), digits = 3)

Arguments

prof1

Vector of components of the nomological network of the first trait (input = "cor") or vector of components of the first profile (input = "score")

prof2

Vector of components of the nomological network of the second trait (input = "cor") or vector of components of the second profile (input = "score")

digits

Number of digits in the output of the function, DEFAULT = 3

input

Do the profiles contain correlations (e.g., from construct validation) or test scores on different scales (e.g., from diverse personality tests)?

Value

ICC_DE

Double-Entry Intraclass Correlation for two given profiles

Author(s)

Christian Blötner, Michael Paul Grosz, c.bloetner@gmail.com, grosz@wwu.de

References

Furr, R. M. (2010). The Double-Entry Intraclass Correlation as an Index of Profile Similarity: Meaning, Limitations, and Alternatives. Journal of Personality Assessment, 92(1), 1-15. https://doi.org/10.1080/00223890903379134

McCrae, R. R. (2008). A Note on Some Measures of Profile Agreement. Journal of Personality Assessment, 90(2), 105-109. https://doi.org/10.1080/00223890701845104

Examples

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icc.de(prof1 = c(.59, .48, .23), prof2 = c(.52, .76, .22), input = "cor")

icc.de(prof1 = c(59, 48, 23), prof2 = c(52, 76, 22), input = "score",
digits = 2)

iccde documentation built on Jan. 22, 2021, 1:06 a.m.

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