Can someone help me with this error that I am getting while estimating a VAR model in R?

I am using annual time series data to estimate a VAR model in R. However, when I run the command to find the optimal lag length, I get the following error: Fehler in VARselect(data, lag.max = 10,...

18 February 2021 9,647 3 View

A three level hierarchical data structure in multilevel modelling, for multiple response question?

Im refering to Andy Field's example in his book Discovering statistics using SPSS, 3rd edition, page 728, where he gives an example of a data structure with level 1 variable is a memory recall...

26 December 2020 9,717 6 View

How to convert Unit/mL enzyme concentration to FPU/mL or FPU/g concentration?

Is there any conversion formula for this purpose.

06 December 2020 3,283 3 View

How many LED bulbs (warm light) will be required for algal growth?

We have 10 glass boxes with 6 inches width and 12 inches depth. How many LED bulbs or halogen lamps will be required to achieve irradiance of 150 umol/s/m2.

23 November 2020 9,414 4 View

What major hardships teachers are going through due to COVID-19?

Teaching Hardships during COVID-19 in 2020 Please highlight what type of hardships, difficulties you as a teacher going through during these trying times due to COVID-19 around the globe? Even...

05 November 2020 4,142 20 View

Anyone can share a test to measure the level of critical thinking skills in university students?

I am PhD scholar, intended to conduct an experimental research to develop critical thinking skills in prospective teachers. if any one developed a test measure please share with me. bests

26 October 2020 4,403 8 View

Please guide me that which theory will relate to the relationships of personality traits, optimism and somatic symptoms disorder?

I have to write the theoretical framework for the course project regarding the relationships of personality traits, optimism and somatic symptoms disorder? Can anybody guide me that which which...

20 October 2020 6,709 4 View

How to measure internal validation of multiple regression using a split-sample method with dichotomous variables?

I would like to validate a regression model using a 50-50 (or 80-20) split method. In my initial multiple regression I have entered all predictor variables using 'enter' technique. My sample size...

20 October 2020 2,849 5 View

Is it dangerous, if samples produce hydrogen gas inside muffle furnace at temperature around 300-400degree celcius?

Geopolymer, derived from flyash, NaOH, Al powder is required a heat treatment inside the muffle furnace. It may cause releasing hydrogen gas inside the furnace. Will it be explosive? or dangerous?...

11 July 2020 3,405 3 View

How the functionalization of AC, graphene and CNTs affect surface area and pore volume?

As we study that modification/functionalization of any carbon material affect its surface area and pore volume. In literature, sometimes the surface area decreases while in some it increases. I...

07 June 2020 4,783 8 View

What are the ethics of the teaching profession?

What are the ethics of the teaching profession? There are a lot of ethics that must be provided by the teacher mention it?

05 January 2021 9,535 54 View

How do I identify new studies in my area of research?

20 December 2020 4,501 4 View

What are the main tools used to analyze the data which is collected from the qualitative social work research ?

i have used case study and non participant observation as a research methods in the qualitative research , hence i need some tools to analyze the collected data....I've belongs to the social work...

25 October 2020 438 8 View

How to manage stress in teaching profession during this pandemic?

Stress management

14 October 2020 7,292 46 View

Any ideas that could help me defining the research gap (international business) ?

greetings fellow researchers I'm a phd student in my first year, working on my dissertation "internationalisation in the age of changing workplace" I would like to have different opinion about...

06 October 2020 929 9 View

What are the factors that influence the development of a workplace learning strategy?

Hello, I am presently working on my research proposal for doctoral works with the above in mind. Any proposals comments will be most welcome. The dissertation will be done in Mauritius - a small...

16 July 2020 7,494 3 View

COVID-19, Lessons learned ?

It should be mandatory to learn from what life teaches us. With COVID-19, we have been forced to buy sanitary materials because in our country there was no industry to do so (dependency) and we...

30 June 2020 3,018 36 View

I need more participants for my study. Anyone interested?

For my MSC in Occupational Psychology, I am currently working on my dissertation which is about whether workload has an effect on the relationship between work engagement and career commitment. I...

29 June 2020 1,466 2 View

Is there a German version of the WHO Workplace Violence in the Health Sector Questionnaire?

We are currently working on a project on health promotion of employees in the home care sector. To asess the current burden of this specific group, we would like to measure the degree of workplace...

29 June 2020 7,752 2 View

How The Corona-virus Pandemic Will Change Architectural Education and Practice??

29 April 2020 7,768 14 View