holland (version 0.1.2-1)

con_twoletter_holland: Congruence Index according to Healy & Mourton (1983)

Description

The function computes the two-letter congruence index according to Healy & Mourton (1983).

Usage

con_twoletter_holland(a, b)

Arguments

a

a character vector with person Holland codes.

b

a character vector with environment Holland codes.

Value

a numeric with value for congruence.

Details

The function finds the congruence according to Healy & Mourton (1983) between the two-letter Holland codes given in argument a, which is the person code, and argument b, which is the environment code. The Index as defined by Healy & Mourton (1983) targets (only) two letters from the Holland code. The degree of congruence is output, according to its definition by Healy & Mourton (1983), as a reciprocal value of a distance. This means, for example, that a value of '3' is the result for a perfect fit of two two-letter codes !

References

Holland, J.L. 1963. A theory of vocational choice. I. Vocational images and choice. Vocational Guidance Quarterly, 11(4), 232<U+2013>239.

Healy, C. C. & Mourton, D. L. (1983). Derivatives of the Self-Directed Search: Potential clinical and evaluative uses. Journal of Vocational Behavior, 23(3), 318<U+2013>328. https://doi.org/10.1016/0001-8791(83)90045-3

Examples

# NOT RUN {
con_twoletter_holland(a="RI",b="SE") # max. difference 
con_twoletter_holland(a="RI",b="RI") # max. similarity
# }