Zero-inflated Poisson regression with Stata?

Hello, Much appreciated if anyone could recommend a book/s, other teaching learning material on zero-inflated Poisson regression with Stata? Thank you. Best regards, Deepani

06 July 2018 4,399 2 View

Turkey belongs to which continent?

Hi everyone! May I know Turkey is belong to which continent? Asia or Europe? Please kindly provide a reliable reference. Thank you.

09 October 2017 8,216 6 View

SPSS Complex Samples?

Has anyone use SPSS complex samples option? I would much appreciate if you could share a clear guide if available (a guide for select a sample and for prepare the sample). I found out the SPSS...

08 September 2017 5,255 1 View

"svyset" command in Stata?

08 September 2017 5,664 0 View

Stratified sampling in complex sampling designs?

Hi, Anyone working with calculating sampling weights for complex sampling designs? If you have a sampling stage where you use stratified sampling to recruit the participants from a cluster and you...

08 September 2017 1,309 4 View

Reliability testing

Does anyone know how to calculate ordinal alpha in SPSS?

05 June 2017 973 6 View

Confirmatory Factor Analysis in LISREL

Can someone states the steps to be followed when performing a CFA with dichotomous and ordinal data in LISREL student edition 9.30 please.

05 June 2017 547 3 View

CI of Weighted kappa

What would be the reasons for upper limit of the confidence interval of weighted kappa go beyond 1 (slightly above 1) ? i.e. 1.077/1.201

05 June 2017 2,699 0 View

Heterogenity between subgroups?

05 June 2016 8,288 2 View

Could you please let me know your views about MedCalc software? Is it a standard statistical software to perform a proportion meta-analysis?

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04 May 2016 2,747 0 View

What is difference between In-line transmission (%) and Total transmission (%) value of optically transparent Ceramics?

I am working on transparent/translucent zirconia-based ceramics. In many papers, I have seen that they are reporting both In-line transmission (%) & Total transmission (%) value of...

20 February 2021 9,405 6 View

How can I import .sav file into LISREL?

I've just downloaded free trial version of LISREL 10.3 but I got stuck with importing .sav (IBM SPSS 25.) file. I mainly followed the steps of this video...

15 February 2021 752 2 View

Using liquids as superstrate in Fabry-Perot Cavity Antenna?

Hi, A Fabry Perot Cavity allows to increase the directivity of a low gain antenna by putting in the top of cavity a superstrate with high permittivity such as a ceramic (er=10.2). However,...

09 February 2021 6,799 8 View

How to obtain confidence intervals in Amos?

Dear all, I would like to know your opinion on the following issue I am struggling with. I am estimating a multigroup model with several factors all correlated among them (they represent...

04 February 2021 1,381 4 View

Sample preparation for ceramics i.e. iron silicate (fayalite), iron oxides, alumina, spinel mineral (hercynite)?

Recommendations in preparing ceramics for nanoindentation and in the process minimize introducing stresses from sample preparation i.e. polishing stage.

02 February 2021 6,211 3 View

What should I do if the reviewer couldn't finalize the review in the journal's given time?

I have Submitted 2,3 Papers in Science Direct associated Journals but the time of the first decision has been ended so What should I do? Could I email them to remind them about the first decision?

01 February 2021 5,788 7 View

What are the thermodynamic and kinetic similarities and differences among dendrite formation during solidification of metals, ceramics and polymers?

Basic dendrite formation of metallic alloys are explained by thermal and constitutional degree of supercooling and most-supercooled band of liquid somewhat ahead of solidification front that...

30 January 2021 8,450 2 View

AMOS - Question regarding correlated errors in CFA, what next?

Hi all, Hopefully this is just a quick question for those of you au fait with CFA in AMOS. I am brand new to this. I'm looking at model (small sample size, yes I know) with 5 latent variables....

26 January 2021 4,425 2 View

Control in microstructure with growth inhibitor?

Dear researchers, I wish to understand the role of grain growth inhibitor in controlling the microstructure of the ceramic pellet. How it controls the growth? Also, I wish to know the grain...

15 January 2021 3,859 3 View

How to adjust a covariate in meta-analysis?

Suppose I am meta-analyzing proportions using their logit transformations. We did a meta-regression of the covariates age, gender, and disease severity score in studies and get respective beta...

11 January 2021 9,409 4 View