Can anyone point me towards a non-parametric equivalent of a standard 2-way
Analysis of Variance. The data has 2 factors (each with 4 options) and each
of the 16 (4x4) combinations of the 2 factors has 4 observations.
If not, thoughts on the applicability of using the parametric test on
ordinal data would be appreciated
Unfortunately, Siegel and Castellan (Non-parametric Statistics for the
Behavioural Sciences) only offers the Friedman test - which is only
applicable for matched samples - and in effect only provides a 1-way
comparison.
Many thanks,
Phil
Philip Jones
Dstl Policy and Capability Studies
01252 455114
"This e-mail is intended for the recipient only. If you are not the
intended recipient you must not use, disclose, distribute, copy, print,
or rely upon this e-mail. If an addressing or transmission error has
misdirected this e-mail, please notify the author by replying to this e-mail."
"Recipients should note that all e-mail traffic on MOD systems is
subject to monitoring and auditing."
|