Search found 6 matches

by derfuss
Fri Feb 10, 2006 9:51 am
Forum: Method and application
Topic: Bootstrapping t-values
Replies: 21
Views: 27085

Hi, returning to my question about the t-values in the pls-procedure-output ( not those in the bootstrapping output) I just evaluated them against the t-table using the rationale given by Backhaus et al., 2003, 10. edition, p. 73-75. They use K - J - 1 = df, with K = number of observations, J = No. ...
by derfuss
Fri Feb 10, 2006 9:08 am
Forum: Method and application
Topic: Treatment of outliers/extremes in PLS
Replies: 2
Views: 4025

Hi Heike, you report many outliers for several indicators. So, the question would be, how many are they in comparison to your sample size? Are they really outliers or some characteristic feature of the respondents in question? If this where the case, treating the outliers in any way would mean loosi...
by derfuss
Thu Feb 02, 2006 2:41 pm
Forum: SmartPLS 2 - FAQ
Topic: Indicators don't show up
Replies: 8
Views: 87551

Hi,

I had a similar problem the first time. Try right-clicking on the txt-file in the Projects treelist and click "Use data for calculation". After that, it worked, at least with my txt file.

Hope this helps.

Regards,

Klaus Derfuß
by derfuss
Wed Feb 01, 2006 9:28 am
Forum: Method and application
Topic: Bootstrapping t-values
Replies: 21
Views: 27085

Hi, maybe my second question was a bit imprecise, but in fact I was aiming at the evaluation of the t-values in the pls-calculation output (those reported alongside the path coefficients, loadings, r-squares etc.) not at those in the bootstrapping output. For the latter its pretty clear from the lit...
by derfuss
Tue Jan 31, 2006 9:09 am
Forum: Method and application
Topic: Bootstrapping t-values
Replies: 21
Views: 27085

Hi, thanks a lot for your help, in fact, I already thought about an explanation like yours, but wasn't too sure, whether I was right or hitting on another problem. Anyway, the question is whether the creation of 500 samples is really feasible with 75 cases in the original dataset, or whether this wo...
by derfuss
Mon Jan 30, 2006 1:28 pm
Forum: Method and application
Topic: Bootstrapping t-values
Replies: 21
Views: 27085

Bootstrapping t-values

Hi everybody, I have a problem regarding the bootstrapping output: Everytime I re-calculate the bootstrap I get different t-values. How is this possible? And how can I determine the significance of loadings and pathcoefficients, if the t-values keep changing? I already adjusted the number of cases p...