reflective-reflective second order construct

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KIHO KWON
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reflective-reflective second order construct

Post by KIHO KWON » Tue May 15, 2018 2:25 am

Hi. SmartPLS community.

My model has reflective-reflective 2nd order construct.
I want to use two-step approach as my key reference did.
So I drew model including only first order model to get Latent variable scores.
But I can't find where LV scores is in smartpls3.
When I use smartpls2, I found LV scores easily.

Question1) where can I find LV scores in smartpls3.
Question2) When I use smartpls2, there are three types of LV scores. Which should I use for two-step approach?
① Index Value -> Results -> Latent Variable Scores(unstandardised)
② Model -> Specification -> Manifest Variable Score
③ PLS -> Calculation Results -> Latent Variable Scores
④ PLS -> Calculation Results -> Manifest Variable Scores

jmbecker
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Re: reflective-reflective second order construct

Post by jmbecker » Wed May 16, 2018 8:03 pm

1) In SmartPLS 3, you find the standardized LV scores using the PLS algorithm and then go to "Latent Variable". You can find the unstandardized LV scores using the IPMA method.

2) You should use the standardized LV scores for the two-stage approach.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
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Azim
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Re: reflective-reflective second order construct

Post by Azim » Thu Jul 12, 2018 5:49 am

Dr, may I know if the two-stage approach applicable yo all four types of HCM or just limited for reflective-formative and formative-formative?

jmbecker
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Re: reflective-reflective second order construct

Post by jmbecker » Thu Jul 12, 2018 7:34 am

It can be used for all, but for reflective-reflective models usually the repeated indicator approach is recommended.
Dr. Jan-Michael Becker, University of Cologne, SmartPLS Developer
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fatema
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Re: reflective formative second order construct

Post by fatema » Sat Dec 29, 2018 4:19 am

In my model I have three reflective and formative 2nd order constructs where two are Independent variables and one dependent variable, one reflective reflective 2nd order construct and two 1st order constructs. I want to use the two stages approach. For that what should I need to do first ? Assessing the measurement model for all 1st order constructs. Please suggest me.

shobi
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Re: reflective-reflective second order construct

Post by shobi » Sun Dec 30, 2018 9:21 am

Dear valuable and respected Researchers, scholars,

I am very glad to be here on this platform that deals exclusively issues matters and problems related to SmartPLS. first of all congrats to PLS team who created this wonderful online platform for us to share our views, ask some questions/queries and get wonderful opinions advice from professionals who have great experience in running various software such as SmartPLS.

To begin with, in my Ph.D. thesis model, all my constructs are reflective-reflective including two constructs are second-order constructs with multi-item sub-dimensions. I would like to know if someone shares with us how to run repeated indicator approach step by step in SmartPLS. when we ask from different researchers and Ph.D. students they give their own interpretations on how to run this type of model in PLS. some issues we researchers confertt while running repeated indicator approach are e.g. measurement model will be run twice. in the first run, we will run with only first order constructs or will run with a full model including second-order construct too. after reporting latent variable score we need to run the measurement model 2nd time. in second measurement model run, we will run only with seconder order construct only? likewise, HTMT will be reported twice too.

All I am suggesting its bit complicated and as I mentioned different people give very different views on it. it would be very kind of SmartPLS experts if they make a small video for us and show us how to run it repeated indicator approach with reflective reflective model and how to report HTMT values and structural model values. that would help us a lot to not only run in the right manner but to report in a correct manner too.

However, if it's not immediately possible to make a video on it, can we be provided detailed stepwise how to run the model with repeated indicator approach.
Thank you for your time and reading my query.

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cringle
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Re: reflective-reflective second order construct

Post by cringle » Sun Jan 13, 2019 1:43 pm

Thanks. To get started on second-order models, you may want to take a look at the respective chapter in the book advanced PLS-SEM issues by Hair et al. (2018): https://www.smartpls.com/documentation/ ... sem-issues

"To begin with, in my Ph.D. thesis model, all my constructs are reflective-reflective including two constructs are second-order constructs with multi-item sub-dimensions." But you may re-consider if this is the right option. Oftentimes, second-order models are not a cure but in fact a disease. In PLS-SEM you can look into all relationships form the lower-order constructs directly into the target construct and the use of a second-order model is questionable

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