30 Questions 158 Answers 0 Followers
Questions related from Witold Orlik
Hello all Research Gate users. I wonder if Nursing Boards in Europe or Nursing Accreditation Bodies for nursing and/or midwifery contacts (e.g. e-mail addresses) are somewhere available online or...
07 May 2021 473 3 View
Hello scientific world, I just simply wonder if 8 to 10 mediators that I found as important for my model is just not too much? One idea that comes to my mind is that I could reduce this number...
06 March 2018 581 2 View
Hello researchers, I am looking for articles on language (speech, vocabulary, and so on) and social development of children and adolescents. Especially I would be interested in materials that...
05 March 2018 5,816 3 View
Hello, Is this fair to report 95% confidence intervals in frequentist approach when we have doubts about representativeness of the sample, etc? Using other words... having just one analysis how...
07 February 2018 5,578 10 View
I was running mediation models and no surprise that coefficoients dfiffer... and majority of significance values are the same.... However, when I looked at indirect effects significance value...
16 January 2018 3,591 3 View
When both predictors are applied in the model with one outcome variable, they are both non-significant. However, when I apply them on one to one basis, they both are significant. Is it not...
06 December 2017 1,631 8 View
Example from my analysis: A and B (main predictors) predicting C (mediator) and C predicting D (outcome variable). Example 1 : Analysis without bootstrapping: Direct effects: A - D =...
05 December 2017 5,466 8 View
In the STDYX Standardization section of Mplus output, some coefficients are above 1. I thought as they are standardised they should be betwwen -1 to +1. (e.g. I have some of above 3 or -3). Why is...
27 November 2017 8,496 2 View
Hello, I ran latent profile analysis on mplus. Now I would like to add two covariates - gender and socioeconomic status. I have couple of questions: - Can I just regress latent variable (c) on...
22 September 2017 2,075 5 View
When reporting from the Mplus output number of participants assigned to classes are we referring to? 1. FINAL CLASS COUNTS AND PROPORTIONS FOR THE LATENT CLASSESBASED ON THE ESTIMATED MODEL 2....
20 September 2017 6,829 1 View
What are the benefits of estimation of the psychological profile of immigrants living for some time in a host country?
02 August 2016 759 2 View
I am looking for research articles where latent class analysis was applied and helped to identify heterogeneity within seemingly homogeneous concepts. Any area of research is welcome:...
02 May 2016 4,198 3 View
I am aware that non-standardised information is more important, but could someone shed more light on this issue? Why is that if two variables are brought to the common metric the significance...
22 March 2016 8,600 9 View
I found statistically significant effect when age through Intercept was predicting alcohol problems. Std YX Estimate: 0.131 (sum of indirect) p < .001. Could someone explain what in practical...
03 March 2016 6,191 5 View
I am just beginning to work on longitudinal research and I am using Mplus for latent growth modelling. I am trying to understand the meaning of standardized intercepts (I) and slopes (S) in my...
16 February 2016 9,986 4 View
I cannot get the output as my main predictor is dichotomous (in input I highlighted this variable as categorical). The information I have is that the predictor cannot be categorical. How could I...
03 February 2016 9,021 6 View
Hi there, I need to included a figure in my research and it consists of latent and observed constructs, lot of arrows, etc. thank you.
14 January 2016 7,309 8 View
How can one explain negative variance? Why and when is it happening? Thank you
07 January 2016 1,512 13 View
I was testing several factor models using CFA and used WLSMV estimator for categorical indicators. I have established a model that provided the best description for the data. Now I am trying to...
04 December 2015 828 3 View
Stepwise and hierarchical regression how would you explain in simple way the differences for students? Thank you
11 November 2015 9,136 6 View
I though that degrees of freedom for t test is the number of participants minus two parameters (means). However in the row for the equality of variance not assumed it could be for example 35, 598....
11 November 2015 9,994 11 View
On SPSS I added number of items and created two totals, e.g. A and B. Correlation between them was .700. When I used the same items and used for latent factors (A and B again) in Mplus (using...
03 October 2015 2,165 4 View
That is a question that some students are asking during the undergrad course. Thank you.
20 September 2015 5,905 15 View
Are standard errors equivalent or somehow comparable to the increase in standard deviations? Using other words do standard errors play the same role in terms of regression coefficients as standard...
05 September 2015 5,578 3 View
RECODE var1 var2 var3 var4 var5 (SYSMIS=999) (ELSE=COPY). EXECUTE. This is perfect for a small number of variables but it would take me a long time to inspect the data... (over 200 variables and...
17 July 2015 7,280 13 View
Preferably the continuous measures would relate to mental health, physical health, substance use, acculturation, etc. but other measures used in migration research are welcome.
05 July 2015 4,066 3 View
Hello RG users, Wonder if anyone is in possession of guidance differentiating distinct types of literature reviews I am trying to decide on whether to use systematic, scoping, mapping review to...
01 January 1970 8,009 3 View
As we are all aware, we are moving away from direct person to person meetings towards online communications, conferences, etc. Do you think there are some ethical considerations to be...
01 January 1970 1,941 7 View
I am going to publish a paper on CPD in healthcare. Please let me know what journals you would consider? Perhaps you have published some research already and have some experience. Many thanks Witold
01 January 1970 3,353 3 View
Economics of healthcare and professional development are the keywords. Can you please help to suggest other journals that would cover the scope, keywords, etc.
01 January 1970 8,755 7 View
