40 Questions 271 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 566 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 685 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 6,020 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 5,675 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 3,680 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 1,742 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 5,563 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 8,595 2 View
Hello Research gate users, Please help :).I converted data set from Stata to Mplus, then ran some latent class analysis using Mplus. Now I would like to transfer back 3 class solution from Mplus...
26 September 2017 7,230 1 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 2,184 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 6,956 1 View
Looking for refs on what LCA is, its application in research and statistics, properties, etc. some material to be used as introduction to LCA. Some theory would help here. Thank you very much.
07 February 2017 9,724 2 View
For example, one should be cautious while trying to indicate causal mechanisms based on the data collected at one point in time... but what else? Thank you very much
24 August 2016 2,927 5 View
What are the benefits of estimation of the psychological profile of immigrants living for some time in a host country?
02 August 2016 837 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 4,304 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 8,708 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 6,303 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 10,096 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 9,091 6 View
Standardised coefficients in path analysis are derived from differences in SD hence two different metrics could be brought to the same level. So as far as I understand standardised effect of .2...
26 January 2016 10,006 2 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 7,402 8 View
What is the difference between multilevel analysis and latent growth modeling? Please answer in possibly accessible way. Thank you
13 January 2016 7,574 2 View
How can one explain negative variance? Why and when is it happening? Thank you
07 January 2016 1,647 13 View
There is a picture in front of me of latent growth model example. Latent variables estimated by the calculations are Intercept and Linear Slope. That is fine. However, they are calculated based on...
04 January 2016 9,607 6 View
I have assessed two models using Mplus. The difference in chi-square is approximately 10. How can I calculate the p value to know whether the latter model is significantly worse than the former...
24 December 2015 1,748 7 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 907 3 View
Addition of bootstrapping into Mplus analysis did not change the indirect effect coefficient but increased a value of standard error. Please clarify. Thank you
30 November 2015 7,974 0 View
Stepwise and hierarchical regression how would you explain in simple way the differences for students? Thank you
11 November 2015 9,231 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 10,064 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 2,231 4 View
parametric and non-parametric tests - any guidance please. Thank you
30 September 2015 868 2 View
That is a question that some students are asking during the undergrad course. Thank you.
20 September 2015 5,978 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 5,663 3 View
Both qualitative and quantitative research articles would be of my interest. If not for Polish, other eastern European migrant groups as Lithuanian, Hungarian, Slovakian and so forth would be...
26 July 2015 3,813 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 7,387 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 4,145 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 8,094 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 2,015 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 3,414 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 8,836 7 View
