Search found 37 matches

by stephan.kramer
Tue Mar 09, 2010 3:30 pm
Forum: Method and application
Topic: Degrees of freedom in bootstrap: n-1 or samples -1
Replies: 4
Views: 4930

Hi Kristina,

e.g. it is stated at the following article, p. 305-306: "Henseler, J., Ringle, C.M., & Sinkovics, R.R. (2009). The Use of Partial Least Squares Path Modeling in International Marketing. Advances in International Marketing 20."

Best regards,

Stephan
by stephan.kramer
Tue Mar 09, 2010 9:16 am
Forum: Method and application
Topic: Degrees of freedom in bootstrap: n-1 or samples -1
Replies: 4
Views: 4930

Hi Christina,

the df's for your t-statistic are the number of bootstrap-samples - 1.

Best regards, Stephan
by stephan.kramer
Mon Mar 08, 2010 7:31 pm
Forum: Method and application
Topic: Moderation: full vs. reduced model
Replies: 2
Views: 2892

Dear PLS-Expert-users,

I am also very much interested in this topic. Any comments are highly appreciated.

Best regards, Stephan
by stephan.kramer
Mon Feb 15, 2010 10:24 pm
Forum: Method and application
Topic: How does Smart PLS handle missing data?
Replies: 2
Views: 2883

You can choose between mean replacement and casewise deletion. Multiple imputation or ml is not provided by Smart-PLS and needs to be applied with a different statistical package up front.

Best regards,

Stephan
by stephan.kramer
Fri Feb 12, 2010 12:51 pm
Forum: Method and application
Topic: Interpretation of interaction term / sign changes
Replies: 2
Views: 5072

In case anybody is interested in this topic: 1) The sign and value of the path coefficient of the interaction term works out fine. 2) The effects described in the previous post can be driven by outliers in the dataset (in my case, one (!!!) outlier-datapoint was responsible for these weird results)....
by stephan.kramer
Wed Feb 10, 2010 10:11 am
Forum: Method and application
Topic: Interpretation of interaction term / sign changes
Replies: 2
Views: 5072

Hi all, I just wanted to bring this topic back on the agenda, because I am really concerned about it. My big problem is the following: I have a model which consists of the IV's A and B, an interaction term A*B, and a DV C. What I oberserve is that in my model there is a positive path coefficient fro...
by stephan.kramer
Wed Feb 03, 2010 12:13 pm
Forum: Method and application
Topic: negative weight
Replies: 10
Views: 9781

Hi Joe, I was also wondering a little bit about this because 1.3 does not seem to be that much in absolute terms. On the other hand MC seems to be the only explanation for negative weights so far. In addition, Bido's calculations show that even VIF's between 1 and 1.43 may have adverse effects: http...
by stephan.kramer
Wed Feb 03, 2010 12:06 pm
Forum: SmartPLS 2 - FAQ
Topic: subsample
Replies: 2
Views: 2288

Hi Baran,

using the search-function should always be the first step before posting. E.g., this would yield the following result:

viewtopic.php?t=152&highlight=subgroup

Your questions are answered there.

Best, Stephan
by stephan.kramer
Mon Feb 01, 2010 6:47 am
Forum: Method and application
Topic: negative weight
Replies: 10
Views: 9781

Thanks a lot Bido! I will consider your helpful suggestions!

Best, Stephan
by stephan.kramer
Sat Jan 30, 2010 4:28 pm
Forum: SmartPLS 3 - Small Talk Corner
Topic: where can i find the T-value?
Replies: 2
Views: 3573

viewtopic.php?t=1269

Best, Stephan
by stephan.kramer
Fri Jan 29, 2010 9:44 am
Forum: Method and application
Topic: standard errors
Replies: 1
Views: 1818

Hi Evangelos,

run the bootstrap, then open the default report. You can find the se's for the loadings, weights and path coefficients in the corresponding categories (you have to scroll to the right :) ).

Best, Stephan
by stephan.kramer
Thu Jan 28, 2010 4:59 pm
Forum: Method and application
Topic: help me please
Replies: 1
Views: 2045

This makes no sense to me...you need to be more precise to obtain useful support.

Best, Stephan
by stephan.kramer
Thu Jan 28, 2010 4:57 pm
Forum: Method and application
Topic: how to compute t-test
Replies: 1
Views: 2369

Hi, using the 'Search'-function should always be the first step before posting, e.g.: http://forum.smartpls.com/viewtopic.php?t=1062&highlight=tvalue Run the bootstrap (cases=observations in your sample, samples >= 1000 to get stable results). The resulting value displayed over the relationships...
by stephan.kramer
Mon Jan 25, 2010 10:47 am
Forum: Method and application
Topic: Interpretation of interaction term / sign changes
Replies: 2
Views: 5072

Interpretation of interaction term / sign changes

Dear all, I have three important questions concerning moderation in PLS. I have two reflective independent LV's (A,B) that predict one reflective (dependent) LV (C). I created an interaction term (A*B) and used the standardised scores for term creation as recommended by Chin et al. (2003). My questi...
by stephan.kramer
Fri Jan 22, 2010 12:46 pm
Forum: Method and application
Topic: negative weight
Replies: 10
Views: 9781

Dear Bido, Thank you for your comments. There is one issue I am currently struggling with: In my sample (which comprises ~ 100 observations by now) I have a formative construct, where some of the nine indicator-weights are negative. However, multicollinearity does not seem to be the problem. VIF's a...