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Oman
Приєднався 23 лип 2008
Learn, Earn, Fun
Відео
Harman's Single Factor Test for Common Method Bias (CMB), Common Method Variance (CMV) with SPSS
Переглядів 27 тис.4 роки тому
CMB/CMV happens when variations in responses are caused by the instrument rather than the actual predispositions of the respondent. If measures are affected by CMB, the intercorrelations among them can be inflated or deflated depending upon several factors. One of the simplest ways to test CMB is to use Harman's single factor test, in which all items are loaded into one common factor. If the to...
Reliability and Validity (Convergent, Discriminant) Measures
Переглядів 24 тис.4 роки тому
Reliability and Validity are concepts used to evaluate the quality of research. They indicate how well a method, technique or test measures something. Reliability is about the consistency of a measure. Cronbach’s α and Composite Reliability (CR) are the two main measures of reliability. Validity is about the accuracy of a measure. Convergent Validity (measures of the same constructs) and Discri...
Reliability Test: Cronbach’s Alpha
Переглядів 6055 років тому
Cronbach’s alpha is a convenient test used to estimate the reliability, or internal consistency, of a composite score. Cronbach’s alpha gives us a simple way to measure whether or not a score is reliable. The general rule of thumb is that a Cronbach’s alpha of .70 and above is good, .80 and above is better, and .90 and above is best.
Factor Analysis with SPSS
Переглядів 1,9 тис.5 років тому
Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors. Factor analysis help researchers to convert various questions (items, variables) into finite number of factors.
Calculate Composite Reliability (CR) and Average Variance Extracted (AVE) using SPSS and Excel
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This video is an attempt to calculate Composite Reliability (CR) and Average Variance Extracted (AVE) using SPSS and Excel. An easy and step by step method is shown to convert Loading Factors into AVE and CR.
best video ever, thank you
why was the first 4 loadings selected?
And how is SMC calculated?
the music is killing me :DDD but on point tutorial!
Sir, duringF3 correlation horizontal is less, in that case what to do? How to improve the correlation?
Is this not among the best?
how to root out the problem if the AVE is less than 0.50?
Sir f1 f1 value is .699 but it is less than vertical value 0.772 so its also discremental problem
I'm just researching this method. My awareness is newly formed. I just want to consult you something. Is it possible to calculate Common Method Bias in meta-analysis studies? How is it done? How can I learn?
hi, can I ask. what app or site did he used? tysm
What is the next step if we see that convergent validity is not valid? (less than 0.50) 1) Do we delete? 2) Or do we report it? 3) How do we explain this in the APA format?
1) how do we report in the paper if we have convergent or discrimant issues? 2) what is the solution if we if we have convergent or discrimant issues?
PLEASE, Is exploratory factor analysis the same as convergent and discriminant validity? I am a little bit confused. Thanks in advance for your reply. Should we do both convergent and discriminant validity, construct validity using EFA in one study?
Theoretically, Factor analysis has two stages, Exploratory (EFA) and Confirmatory (CFA). The test of Reliability and Validity is part of CFA.
Hello, professor.I would like to ask how to conduct the Harman's Single Factor Test for a model in which the variables are collected in two time points. Do I need to include the variables collected at time 1 and at time 2 separately?
SIR, WHAT IS THE NAME OF THIS METHOD OF CALCULATING DISCRIMINANT VALIDITY, hTMT, CROSS LOADING OR ANY OTHER METHOD
Fornel and Larcker (1971) by comparing the square root of each AVE in the diagonal with the correlation coefficients (off-diagonal) for each construct in the relevant rows and columns.
how to add stat tool package in excel
File, Options, Add-ins, Analysis ToolPack, Go, OK
how did you do it can you share with me , thank you
if there is a discriminant validity issue in the measurement model, what's the solution?
There are several trial & error approaches. 1. remove the item having low loading (<0.5), 2. remove outliers, 3. check the multicollinearity issues, 4. Mahalanobis distance, etc.
didnt understand
Very good sir
Thanks and welcome
Sir in F1 one value 0.772(vertical) is greater than 0.699 that means here also we are having issue of discrimination validity
Yes, you are right. Thanks for the identification.
As m also agree m also comment the same thing after view
Aduhh pening kpala aq..😢😢
Hello,professor, can you tell me which reference this "50%" standard comes from? Thank you;)
C.M. Fuller, M.J. Simmering, G. Atinc, Y. Atinc, B.J. Babin Common methods variance detection in business research Journal of Business Research, 69 (8) (2016), pp. 3192-3198
Sources of method bias in social science research and recommendations on how to control it Annual Review of Psychology, 63 (2012), pp. 539-569
where can I find the rotated component matrix?
ua-cam.com/video/R1ZkvJctfUI/v-deo.html
Thanks for the wonderful introduction. May I ask if I have only ONE component extracted from factor analysis, can I use the loadings in the Component Matrix to calculate CR and AVE as the ROTATED component matrix shows nothing? Thanks a lot!
At least TWO factors are required to get the loading values.
@@vishalparul Thanks a lot for your information!
There is no link in the description.
ua-cam.com/video/MHwFCX9iyFc/v-deo.html
Hello sir! I would like to ask you whether I need to moderate variable into analysis or not for Harman single factor?
Dear Cecilia, mostly the moderators are personal (demographical) in nature. So I do not recommend adding these moderators during the CMB test. Harman single factor test is required just before the factor analysis and generally, moderators are not included in the factor analysis.
@@vishalparul My moderation is "Price Consciousness" which moderate relationship between Sustainability (independent variable) and consumer purchase intention (dependent variable). It is not demo-graphical sir.
@@ceciliaellis454 If Price Consciousness is included in Factor Analysis only then include in CMB.
@@vishalparul Thank you sir :)
Hello, for which variable(s) we do this analyses? I mean lets say i have dependent independent and mediator variables. Should i do this for each of them? If yes and one of them is scored larger than .50 what should i do? Thanks
What if the data requires an oblique rotation? Where will you get the factir loadings? From process matrix or from structure matrix?
ua-cam.com/video/R1ZkvJctfUI/v-deo.html
No statistics no cry ;)
Any reference to backup?? please
Could you please clarify your question?
@@vishalparul Whar are the journal articles or books we can cite to use this method in a thesis or a paper?
Fornell, C., & Larcker, D. (1981). Evaluating Structural Equation Models with Unobservable Variables and Measurement Error. Journal of Marketing Research, 18(1), 39-50. doi:10.2307/3151312 Source: en.wikipedia.org/wiki/Average_variance_extracted#cite_note-FornellLarcker1981-1
Thank you for your sharing! :)
so we can check reliability and validity from EFA, and no need to do CFA that is right???
Yes, up to a certain extent.
@@vishalparul thanks for the video, have you got any reference? I want to perform an EFA and get both AVE and CR.
Very good! I checked the results are similar to the ones obtained from SmartPLS. The only small differences on the values of loading factors from SPSS are a bit smaller than the ones from SmartPLS. Good job. Thanks a lot!!!!!!!!!!!!!!!!!!!!
Thanks for the info!
I cannot hear you
Sometimes a UA-cam video is a good way of communicating complex information, but not often, and this isn't one of those times. A few words (and/or some formulas) are worth a thousand pictures.
perfrctly explained....thnks alot
Thanks
in rotated component matrix ..is it possible to get component with only one factor?
yes, type 1 at 1:44
Dr vishal plz write something about normal distribution.
Can you please explain the procedure of making the rotated component matrix in SPSS. I am using the same UTAUT2 model.
Kindly use Analyze > Dimension Reduction > Factor
Thanks for the response. What are the options that I have to select under descriptives, extraction, Scores and Options (Under rotation varimax has to be selected is all I can deduce). Please help.
In descriptives use Determinants and KMO/Bartlett's, KMO must be >0.65 or you cannot do factor analysis (rather, it's pointless to do it). You can use in Extraction least squares, principal component or maximun likehodd, it depends on you. Also, number of factors to extract depends if you want to explore or confirm a set number of factors. Rotations are done after you kinda see the structure, just try for the one that shows the most clear your structure. And in options, sort by size because it's easier, also erase small coeficients so it looks lit and sleek
How can you have the rotated component matrix using SPSS?
Kindly use Analyze > Dimension Reduction > Factor
it is said, "rotation converged in 6 iterations." how would we determine the number of iterations?
For iterations, you need to perform Factor Analysis. Then, one by one, calculate CR and AVE.
VERY GOOD! THANK YOU!
thank you!!!!
it doesn't work and it is wrong.
The sound doesn't work, am i the only one who is experiencing this problem?
No I'm also
Dr. Grande: Your tutorials are informative and very useful. I always "Like" them. However, you do not post an E-mail address or method of contacting you with related questions. How can one send a question (or comment) to you then?