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

"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

Confirmatory Factor Analysis with ordinal variables in stata?? sem or gsem

Does anyone know how to perform CFA in Stata with ordinal variables? I tried gsem (with ordinal logit link function), but then I cannot get the goodness of fit indices. In that case, is it okay to...

06 July 2017 736 1 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

Binary Logistic Generalized Linear Mixed model in SPSS. Is it doable?

I want to analyses the proportion of swimming sperm of three species of fish in two salinities. To analyse the proportion of swimming sperm in a Generalized Linear Model, I would use a Binary...

03 March 2021 2,297 3 View

What test should i use in comparing the correlation between categorical and continuous variables?

Dear all, I have the variable (Surgery duration) represented by values in minutes and the variable (preoperative neuropraxia cases) represented as (Yes/No) values. I want to compare these two...

03 March 2021 5,427 5 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to find the mean, SD and CI in SPSS?

Hi, I hope that someone can help me with this task: I have 5 groups of participants which are numbered in SPSS from 1 to 5 (according to their group number) and are all under the variable group....

03 March 2021 506 3 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

How to code open-ended questions in SPSS?

Hello all, In SPSS I am going to code 2 open-ended questions. I have already read all the answers and I made a list of the most important categories to which I can code the answers. This question...

02 March 2021 1,757 4 View

The procedure compute?

02 March 2021 5,204 3 View

Does anyone know what a '.' means in SPSS?

Hi everyone! I was wondering if anyone would be so kind as to help me with regards to my data set on SPSS! I was checking for multivariate outliers via the standardised residuals ('Linear...

02 March 2021 7,910 3 View

How to calculate BREQ 3 questionnaire?

how to calculate BEHAVIOURAL REGULATION IN EXERCISE QUESTIONNAIRE BREQ 3 ,which contain 24 questions and each question has 5 answers (0- Strongly disagree , 1-disagree, 2- Neither agree nor...

02 March 2021 811 3 View

What SPSS analysis should I run with one IV (with two levels) and two DVs?

Hi, I am trying to figure out which test would be most appropriate to run for the following question: Is there a difference in task blood pressure between smokers and non-smokers? There are two...

01 March 2021 8,235 2 View