Serial Correlation test?

More Toyin Oluwatuyi's questions See All

How do I sample Virtual Community members in a specific location?

I want to sample virtual community members in a city for an academic research in travel behaviour. What sampling technique works? I want to use a questionnaire and a travel diary to collect data....

30 November 2019 9,538 3 View

I got 02 moderator values defining Johnson-Neyman significance regions. Is it an error?

Hi everyone, I am conducting research for my Master's thesis. I am using PROCESS by Johnson-Neyman to analyze my Moderator model. I test the relationship between Public Service Motivation and...

03 March 2021 2,350 2 View

What analysis to choose with a large neste dataset and clearly skewed or kurtotic distributions?

Hello! I have a dataset of n=3000 nested within 8 countries with approximately 200 or 400 responses in each country. I originally planned to perform multilevel modelling with 4 dependent variables...

02 March 2021 6,865 1 View

Is it necessary to report effect size (ES) in statistics of biomedical research given that we already report p values routinely?

Pls share your thoughts

01 March 2021 7,330 4 View

What are the application of Fixed points thoery in Chemistry.?

It is said that fixed point theory has lot of applications not in the field of mathematics only but also in various areas. So I am looking for applications in Chemistry only..

26 February 2021 3,533 1 View

How to handle studies which report perfect effect sizes in a meta-analysis using Pearson's r?

I'm in the process of updating a meta-analysis and in one of the new studies, effect sizes are reported as Tau-U. Two of the effect sizes are reported as Tau-U = 1.00. I am using Andy Field's...

24 February 2021 2,265 3 View

How to deal with different types of logarithmic data for meta-analysis?

Hello dear researchers, 1.I want to know how can I compute pooled effect size when we have three types of logarithmic Mean&SD Type 1. Log (x) with base 10 Type 2. Ln (x) Type 3. Just...

18 February 2021 8,214 3 View

What is the best way to calculate sample size for a multivariate regression model for adequate power?

GPower is only equipped to deal with calculations of bivariate regressions and needs SD s for both predictor samples. However, if one has a multiple regression with more than 2 outcome variables...

12 February 2021 6,911 3 View

What effect size should i use for a meta-analysis when study data violate normality assumptions?

I'm looking for advice regarding what effect size to use for meta-analysis. Our question is whether the number of individuals in a group affects the per-capita productivity of that group. Does...

10 February 2021 5,510 8 View

How can I calculate the effect size of a study when given only the regression results?

Hi there, I am quite new to doing meta-analysis and I am having a bit of difficulties calculating effect size of different studies to compare. Especially if the studies do not give enough results...

08 February 2021 3,961 3 View

Is it ok to run an ANOVA with a sample that is slightly smaller than what is recommended?

Greetings! G*Power indicates that 128 is the target sample size for a one-way ANOVA (effect size = .25; significance = .05; power = .8). For my study, I've got one categorical independent...

01 February 2021 8,191 9 View

Kelvyn Jones

What do you mean by "not working", we need more information. Also we need some more information on model and data setup.

Rolando Gonzales Martinez

Toyin Oluwatuyi , xtserial is simple Wooldridge’s test for autocorrelation in panel data, which you can do by hand if xtserial is not working:

Estimate your model and get the residuals

Regresses the first-difference of the residuals from the regression against first-differenced variables on their lags and test that the coefficient on the first lag residual is equal to −0.5

Toyin Oluwatuyi

Thanks