R/statpsych1.R
ci.cod2.Rd
Computes a confidence interval for a ratio of population dispersion coefficients (MAD/median) in a 2-group design. Ratio-scale scores are assumed.
ci.cod2(alpha, y1, y2)
alpha level for 1-alpha confidence
vector of scores in gorup 1
vector of scores in gorup 2
Returns a 1-row matrix. The columns are:
COD1 - estimated coefficient of dispersion in group 1
COD2 - estimated coefficient of dispersion in group 2
COD1/COD2 - estimated ratio of dispersion coefficients
LL - lower limit of the confidence interval
UL - upper limit of the confidence interval