Search found 18 matches

by Bjerg54
Tue Jan 29, 2013 2:23 pm
Forum: Method and application
Topic: Determining direction of a relationship
Replies: 2
Views: 1896

Hi Bido, Thank you for your reply. All the models I work with will have more than two LV. usually between 5-12. However, sometimes it can be difficult to determine the relationship. E.g consider these three variable I (image), P(product), R(Re purchase) My model would then be (I-->R) (P-->R) However...
by Bjerg54
Tue Jan 29, 2013 9:16 am
Forum: Method and application
Topic: Determining direction of a relationship
Replies: 2
Views: 1896

Determining direction of a relationship

Dear all, Is it possible in smarpls, to determine whether a relationship goes from A to B, or B to A? Most often I naturally see the same correlation when reversing the arrow between to LV. However, is it possible, without considering the logical and chronological order, to mathematical determine in...
by Bjerg54
Mon Jun 11, 2012 7:56 am
Forum: Method and application
Topic: casewise AND mean replacement of missings in same mod
Replies: 2
Views: 3082

Hi Bido, Thank you for the response and reference. The article raises some surprising and concerning questions. It would seem I should use the mean replacement, and then just accept the lower R^2 and path coefficients, despite my belief than casewise deletion gives a more "clean" model. Ca...
by Bjerg54
Thu Jun 07, 2012 10:54 am
Forum: Method and application
Topic: casewise AND mean replacement of missings in same mod
Replies: 2
Views: 3082

casewise AND mean replacement of missings in same mod

Dear all, Has anybody any experience in using both casewise replacement and mean replacement, in the same model. My problem: 1) if using mean replacement, one of my LV's are not significant, this is due to too many missing values, which is a bias to the variance, however, all empiric studies and sim...
by Bjerg54
Mon Aug 08, 2011 1:24 pm
Forum: Method and application
Topic: Path coefficients and R2
Replies: 4
Views: 10505

Dear professor, A have a PLS model with 6 LV LV1 har a path towards LV2, LV3, LV4, LV5 and LV6 My problem is, that the path from LV1 towards LV2, is high, but has a very low R^2. (path = 0,271 : R^2 = 0,074) Does this emply that the path coefficient is not reliable? Is it still "safe" to s...
by Bjerg54
Tue Jun 28, 2011 7:51 am
Forum: Method and application
Topic: VIF, t- values for formative , outer weights or loadings
Replies: 2
Views: 4190

Hi Bido, A question to your answer above: 3) In the report for validating formative construct which t- values should i see. ( outer weights or outer loadings t values) Outer weights Does this mean, that we in a formative LV can remove indicator variables rejected in the t-test? Are this then interpr...
by Bjerg54
Wed Jun 22, 2011 8:31 am
Forum: Method and application
Topic: Problem? Significant but small t-values in outer model
Replies: 9
Views: 5807

Hi Christian, Regarding the t-test on the outer weights in a formative model, can these be used to test whether the indicator provides significanse support to its LV? I seem to have read in much litterature that the only way to test this in a formative model, is by a vanishing tetrad. BR Hello, I am...
by Bjerg54
Wed Jun 22, 2011 8:09 am
Forum: Method and application
Topic: loading vs weigth
Replies: 3
Views: 2529

Hi professor, If one of the outer weights in a formative model is negative, is this then equal to that this indicator has negative correlation with the dependent variable? or how should such a negative weight be interpreted. When just doing a linear regression with this one indicator and the indicat...
by Bjerg54
Thu Jun 16, 2011 9:48 am
Forum: Method and application
Topic: sign changes and cases in bootstrap
Replies: 11
Views: 9551

Hi Bido, I have a LV containing 5 manifest variables, when doing a principal component factor analysis in spss, all variables load with more than 0,5. Hence I am concluding that no variables needs to be excluded. However, when entering the model in smarpls, the t-values for 2 of the 5 manifest varia...
by Bjerg54
Wed Jun 15, 2011 11:28 am
Forum: Method and application
Topic: sign changes and cases in bootstrap
Replies: 11
Views: 9551

Hi Bido, Thank you very much for the fast reply. I know how 3 different follow-up questions :) Do you have a reference to a research paper or similar that explains the different weighting schemes in smartPLS? (factor, path, centroid) Do you know if there is any advantage in "cleaning" your...
by Bjerg54
Mon Mar 28, 2011 12:07 pm
Forum: SmartPLS 2 - FAQ
Topic: Bootstrapping
Replies: 7
Views: 6841

Hi Howards,
Thanks, look forward to reading it

BR
by Bjerg54
Fri Mar 04, 2011 9:53 am
Forum: Method and application
Topic: Significance level for correlations coefficients
Replies: 5
Views: 5592

Hi Diogenes, Thank you for the reply. Yes the path coefficient are as I understand the standardized versions of the linear regression weight results. When describing the relationship between the LV, and calculating the impact on one LV when increasing another, which measurement would be recommended ...
by Bjerg54
Thu Mar 03, 2011 9:19 am
Forum: Method and application
Topic: Significance level for correlations coefficients
Replies: 5
Views: 5592

Hi Professor, I have a question regarding the t-testing between the LV. If SmartPLS dosnt do this, then what are the results shown in "Path Coefficients (Mean, STDEV, T-Values)" when doing a bootstrap? You get these results "T Statistics (|O/STERR|)" which I thought were the t-te...
by Bjerg54
Wed Dec 15, 2010 10:15 am
Forum: Method and application
Topic: Cross loading or Outer weights impact on latent variable
Replies: 3
Views: 2937

Cross loading or Outer weights impact on latent variable

Dear professors, I want to make a model which measures the impact on loyalty towards a brand. I have a formative model with 4 latent variables, "image", "product", "service" and "loyalty". Each of these concist of several measurement variables. Image, Product ...
by Bjerg54
Tue Dec 07, 2010 8:47 am
Forum: SmartPLS 2 - FAQ
Topic: Bootstrapping
Replies: 7
Views: 6841

Dear Bido, I have a total of 409 respondents in my data, when bootstrapping, I select 409 cases and 1000 sample. When I select to use all my cases in each sample, how come I dont get the same result with 1000 samples, as I would get with 100 samples? (as all my cases are used in each of the 1000/100...