I need to correlation matrix for several ordinal variables (in fact, one of them has more than 10 values, so that "polychotic" stata comand interpret it as continuous).
The cuestion is:
- a ) Case a: Ordinal - Ordinal. Polychoric output is "Polychoric".
- b) Case b: Ordinal - Continuous. Polchoric output is "Polyserial". But, in this case, there isn't any "p-value" (Similar to tetrachoric, i.e. or Pearson G2 in Polychoric). Is possible to get it or to do any test?
Details:
polychoric SEARCH EXRD COOP PROT, verbose
Variables : SEARCH EXRD
Type : polyserial
Rho = .57510669
S.e. = .00661296
Variables : SEARCH COOP
Type : polyserial
Rho = .57129919
S.e. = .00735288
Variables : SEARCH PROT
Type : polyserial
Rho = .35982063
S.e. = .01033702
Variables : EXRD COOP
Type : polychoric
Rho = .54387422
S.e. = .00930039
Goodness of fit tests:
Pearson G2 = 182.9767, Prob( >chi2(41)) = 7.645e-20
LR X2 = 177.94358, Prob( >chi2(41)) = 5.538e-19
Thanks in advance
The cuestion is:
- a ) Case a: Ordinal - Ordinal. Polychoric output is "Polychoric".
- b) Case b: Ordinal - Continuous. Polchoric output is "Polyserial". But, in this case, there isn't any "p-value" (Similar to tetrachoric, i.e. or Pearson G2 in Polychoric). Is possible to get it or to do any test?
Details:
polychoric SEARCH EXRD COOP PROT, verbose
Variables : SEARCH EXRD
Type : polyserial
Rho = .57510669
S.e. = .00661296
Variables : SEARCH COOP
Type : polyserial
Rho = .57129919
S.e. = .00735288
Variables : SEARCH PROT
Type : polyserial
Rho = .35982063
S.e. = .01033702
Variables : EXRD COOP
Type : polychoric
Rho = .54387422
S.e. = .00930039
Goodness of fit tests:
Pearson G2 = 182.9767, Prob( >chi2(41)) = 7.645e-20
LR X2 = 177.94358, Prob( >chi2(41)) = 5.538e-19
Thanks in advance
Comment