Hi Team Smart-PLS,
I have few questions that need expert's clarification.
1. I am wondering are there any articles applying PLS approach and at the same time use one-tailed testing in Smart-PLS?
2. Do we normally run path model using Two-tailed testing by default?
3. In the case of testing for moderating/interaction effect, is it always we have to select for one-tailed testing instead of two-tailed?
Thanks!
Raja Rizal
One-tailed or Two-tailed
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- PLS Junior User
- Posts: 7
- Joined: Tue Oct 27, 2015 3:17 pm
- Real name and title: Raja Rizal Iskandar Raja Hisham, Mr.
- cringle
- SmartPLS Developer
- Posts: 818
- Joined: Tue Sep 20, 2005 9:13 am
- Real name and title: Prof. Dr. Christian M. Ringle
- Location: Hamburg (Germany)
- Contact:
Re: One-tailed or Two-tailed
Thanks. The decision on one tailed and two-tailed testing depends on a priori assumption. If a relationship can only be positive and a negative outcome is impossible, then, you to one-tailed testing, otherwise two-tailed. In most cases, researchers assume that a relationship possibly is positive and negative.
Best
Christian
Best
Christian
Prof. Dr. Christian M. Ringle, Hamburg University of Technology (TUHH), SmartPLS
- Literature on PLS-SEM: https://www.smartpls.com/documentation
- Google Scholar: https://scholar.google.de/citations?use ... AAAJ&hl=de
- Literature on PLS-SEM: https://www.smartpls.com/documentation
- Google Scholar: https://scholar.google.de/citations?use ... AAAJ&hl=de
Re: One-tailed or Two-tailed
May I ask for your help in explaining the difference in your response vs. Kock's (2015) findings. Kock: A one- tailed test is recommended if the coefficient is assumed to have a sign (positive or negative), which should be reflected in the hypothesis that refers to the corresponding association. If no assumptions are made about coefficient sign, a two-tailed test is recommended.
My hypothesis assumed a positive relationship between two constructs.
My hypothesis assumed a positive relationship between two constructs.