Search found 54 matches
- Thu Feb 02, 2006 9:24 am
- Forum: Method and application
- Topic: Bootstrapping t-values
- Replies: 21
- Views: 27092
Hi Samy, I'm glad that my comments made sense. However, the issue you raised regarding the bootstrap sample size kept bugging me. So I ran some tests that basically confirmed my hypothesis regarding the relationship between bootstrap sample size and stdev of bootstrap estimates (i.e. t-values): The ...
- Wed Feb 01, 2006 3:40 pm
- Forum: Method and application
- Topic: Bootstrapping t-values
- Replies: 21
- Views: 27092
Hi Samy, well, interesting points. Here's what I think: 1) Bootstrap Sample Size I have not come across any recommendations regarding this parameter in the literature. However, your rationale for choosing an N smaller than the original sample doesn't convince me. Due to the random drawing of cases f...
- Wed Feb 01, 2006 9:38 am
- Forum: Method and application
- Topic: Bootstrapping t-values
- Replies: 21
- Views: 27092
- Tue Jan 31, 2006 11:45 am
- Forum: Method and application
- Topic: Bootstrapping t-values
- Replies: 21
- Views: 27092
Hi Klaus, the number of cases in the original data set is (almost) irrelevant, since what you are trying to approximate with the bootstrap is the distribution of the parameter estimates. Significance is determined against an ordinary t-statistic table using the number of bootstrap runs as the df (i....
- Mon Jan 30, 2006 9:21 pm
- Forum: Method and application
- Topic: Multi-group comparisons with PLS
- Replies: 59
- Views: 66523
Multi-group comparisons with PLS
Dear PLS-Community, I would like to compare two subsamples of my data for differences in the structural path estimates. In particular, I would like to test, if the observed differences in the estimates are actually significant. Dibbern/ Chin (2005) describe a procedure using random permutations. How...
- Mon Jan 30, 2006 8:51 pm
- Forum: Method and application
- Topic: Bootstrapping t-values
- Replies: 21
- Views: 27092
Klaus, you will be able to answer your questions on your own once you understand how the bootstrap procedure works: For each boostrap-run (100 runs in your case), the program selects a specified number of cases (75 in your case) at random from your sample with the possibility of drawing the same cas...
- Mon Jan 16, 2006 12:16 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Estimation differences SmartPLS vs. LVPLS
- Replies: 7
- Views: 5851
- Sun Jan 15, 2006 8:54 pm
- Forum: SmartPLS 3 - Requested Features
- Topic: Indicating Significance
- Replies: 3
- Views: 5259
- Sun Jan 15, 2006 8:40 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Estimation differences SmartPLS vs. LVPLS
- Replies: 7
- Views: 5851
- Sat Jan 14, 2006 4:31 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Estimation differences SmartPLS vs. LVPLS
- Replies: 7
- Views: 5851
- Sat Jan 14, 2006 4:43 am
- Forum: SmartPLS 2 - FAQ
- Topic: Quality statistics - Release date for next SmartPLS release?
- Replies: 16
- Views: 21732
Excel-Tool for Stone-Geisser Q-square (redundancy)
All, after some more in-depth reading and some fooling around with Christian's Excel-sheets I was able to figure out a way to implement the procedure in a more flexible way. The sheets I created take MV- and LV-score output from PLS and calculate the cross-validated redundancy measure for a given va...
- Fri Jan 13, 2006 8:19 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Estimation differences SmartPLS vs. LVPLS
- Replies: 7
- Views: 5851
Estimation differences SmartPLS vs. LVPLS
All, not sure really, if this is a bug or a feature... I've noticed that SmartPLS and LVPLS v1.8 give very different estimates for structural paths and indicator weights/loadings for models that are specified in an identical way and estimated using the same raw data. In some cases, the differences a...
- Fri Jan 13, 2006 7:57 pm
- Forum: Method and application
- Topic: development of the indicators
- Replies: 3
- Views: 3977
- Fri Jan 13, 2006 7:49 pm
- Forum: SmartPLS 2 - FAQ
- Topic: Quality statistics - Release date for next SmartPLS release?
- Replies: 16
- Views: 21732
- Tue Jan 10, 2006 12:30 pm
- Forum: SmartPLS 3 - Requested Features
- Topic: Moderator-Variables and Interaction Indicators
- Replies: 2
- Views: 5667
Moderator-Variables and Interaction Indicators
I guess it is already on the todo-list for the next release, but supporting the modeling of moderation-/ interaction-effects would be a neat feature. While such modeling is already possible now, it is quite painstaking to generate the product-interaction indicators manually (especially, if you have ...