Some times, the Fornell/Larcker' method didn´t show discriminant validity. Another way to assess it will be:
Compute the Interval of confidence of the correlation (r +/- 2 * se), if the value 1 is not inside of this I.C. we have discriminant validity.
For this computation we need the s.e. of the LV correlations, it is a good idea because we knew if this correltaions were significant too.
In bootstrap procedure this s.e of the LV correlations could be computed.
Best regards
Bido
Discriminant validity
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Hi Volker,
1) Cross loadings - the indicator should has a bigger correlation with its LV than with others LV.
2) NETEMEYER, R.G.; BEARDEN, W.O.; SHARMA, S. (2003). Thousand Oaks: Sage Publications.
p.154 = "If the confidence interval ( + 2 standard errors) around the disattenuated correlation does not contain a value of 1, evidence of discriminant validity exists (Anderson & Gerbing, 1988).
The desattenuated correlation = see
NUNNALY, J. C.; BERNSTEIN, I. H. Psychometric Theory. 3rd Ed. New York: McGraw-Hill, Inc., 1994.
Best regards,
Bido
1) Cross loadings - the indicator should has a bigger correlation with its LV than with others LV.
2) NETEMEYER, R.G.; BEARDEN, W.O.; SHARMA, S. (2003). Thousand Oaks: Sage Publications.
p.154 = "If the confidence interval ( + 2 standard errors) around the disattenuated correlation does not contain a value of 1, evidence of discriminant validity exists (Anderson & Gerbing, 1988).
The desattenuated correlation = see
NUNNALY, J. C.; BERNSTEIN, I. H. Psychometric Theory. 3rd Ed. New York: McGraw-Hill, Inc., 1994.
Best regards,
Bido
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DISCRIMINANT VALIDITY
We should always remember that correlations distributions are not symmetrical when r differs from 0 (H0 in correlation tests). We should calculate the non-symmetrical confidence intervals using Fisher Z approach. Excel could do it. You need just to inform the original r and then calculate the confidence interval as a usual Z score and then turn back to the original (non symmetrical) interval.
Cheers
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Master Student of Marketing
UFMG-Brazil
UFMG-Brazil