Why does the Cronbach Alpha reliability and the CFA Composite reliability (CR) are different?

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Can I use an independent sample t test with non-normally distributed data if I have large sample size?

Up on checking my data (large sample size of 11,008) on histogram, it showed almost normally distributed, slightly skewed to the one side. But the Kolmogorov-Smirnov Test for Normality indicated...

01 September 2021 5,378 14 View

Why Single factor model in using CFA become low as compared with higher order , bi factor, and correlated factor models?

I have research entitled "Teacher well-being". In my first study, the study participants were very small and removed almost half of the items. However, after discussing with my Professor and...

05 April 2021 7,206 4 View

Which post hoc test should I use in my research ?

I want to analyze my data on age, university type, income, educational qualification, teaching experience with three categories. A little bit I have faced some challenges of normality...

03 April 2021 2,289 5 View

Is there any specific natural ventilation standard for schools in terms of ACH for the current pandemic?

Schools are reopening and most standard setting agencies are recommending adequate natural ventilation should be maintained when schools are re-opened. Is there a specific quantitative natural...

21 October 2020 5,741 4 View

Which method is best for testing model Fitness while using Hierarchical logistic regression with large data sets?

Which method is best for testing model Fitness while using Hierarchical logistic regression using large data sets?

03 October 2020 8,247 4 View

What is the sample size to study quality of laboratory like lab errors, critical result reporting and TAT?

I there different method to compute sample size for such studies?

20 August 2019 2,891 2 View

How can we statistically compare difference between two trends?

I have seen many researches that compare trend difference between two or more groups. However none have statistically compared the trend difference, then i searched why? and I found no clear...

26 February 2018 9,947 6 View

I need the datasets of Microgrid for system identification?

Hi I am working on data driven model of the microgrid, for that, i need the reliable datasets for the identification of MG data driven Model. Thanks

02 August 2024 5,748 4 View

Should I remove an item from a scale to raise Cronbach's alpha and McDonald's omega or is it better to leave it if they are both over .7 already?

Hello! I have this scale which had 10 items initially. I had to remove items 8 and 10 because they correlated negatively with the scale, and then I removed item 9 because Cronbach's alpha and...

01 August 2024 4,606 7 View

What do you consider to be the most relevant elements of EEG for studying cognitive biases?

I've seen articles that primarily focus on alpha and beta activity in the frontal regions, but these studies often compare healthy subjects with those having various pathologies. I haven't seen a...

31 July 2024 7,259 1 View

Dimensions of an MJ Research 96-well alpha module?

Can anyone with an MJ research / BioRad PCR machine from ~2010 or earlier tell me the external measurements (LxWxH) of the removable standard PCR alpha modules that can be removed from a PTC200 or...

30 July 2024 2,867 0 View

Ti6Al4V - Phase differentiation between alpha and alpha prime martensite?

Dear Researchers, Is it feasible to distinguish between alpha and alpha prime martensite in the Ti6Al4V alloy under rapid solidification in the as-cast state using XRD, in addition to...

30 July 2024 3,849 0 View

I need a reliable source or an example supported by excel sheet to understand Fuzzy Vikor?

27 July 2024 5,916 1 View

Why only alpha wave of brain are found in some patients?

I have found an EEG where only alpha waves are present. Beta waves are not found in active patients. What interpretations ?

26 July 2024 4,741 1 View

What are the important scholarly articles related to 'Use of Likert Scale in social science research' ?

The Likert scale is a commonly used measurement tool in social science research to assess people's attitudes, opinions, or perceptions. The social science students still have difficulty selecting...

25 July 2024 7,535 1 View

Is CFI / TLI = 1 okay in Mplus?

Hi there, I did a CFA to 10 items on 2 latent variables. The model fit is too good and I've never seen it before. CFI / TLI = 1, RMSEA = 0. Is it okay, if everything else was done properly?...

24 July 2024 5,454 7 View

Is a reliability test necessary in my survey on translations?

Dear all, I gave 116 respondents 18 translated sentences and asked them to indicate their levels of acceptance of these translations on a five-point scale. Some translations result from strategies...

24 July 2024 8,245 5 View