Should we use sample weights when using Instrumental Variables?

I was testing the relevance of an IV and the F value changed importantly when including sample weights (about 5 when the model is weighted and about 12 when it is not). However, considering that...

02 March 2019 6,446 2 View

Does anyone have an experience applying paper & pencil Implicit Association Test?

I am working on a P&P survey about attitudes toward science and I would like to include some gender's stereotypes measurement. However, the straightforward tests are usually assisted by...

05 June 2018 5,380 1 View

What are the differences between Conjoint Analysis and Factorial Survey?

10 November 2015 2,769 1 View

Is the cognitive bias a risk when you include a cognitive test in a large scale survey?

I am working in the design of a survey to a national representative sample. The time in the pilot application is around 50 minutes. In the final of the questionnaire we are including the Raven's...

02 March 2015 9,052 3 View

What scales exist to measure the attitude to the competence in youth or students?

I am designing a questionnaire to youth and we have to include a scale to measure competitiveness. Only we found a Scale of Anxiety in sport, but it is no applicable in this case.

01 February 2015 6,982 3 View

Does anyone ice-breaking question to be included in surveys?

01 February 2015 6,239 6 View

Can anyone recommend a measurement of reserve salary?

01 February 2015 3,202 3 View

Does anybody know studies that use measuring of time preferences and risk to children?

We are working in a survey design to youths, but we will include children are 12-14 year old. The classic measuring of time preferneces and risk will be complex to childrens. Likewise, some...

31 December 2014 6,113 3 View

What books or articles would you recommend to create a survey about idle youth?

11 December 2014 7,141 4 View

How to disagree with a reviewer?

Dear all, I have had a couple of experiences answering R&Rs. In general, it has gone smoothly and the reviews have been always reasonable. They always have helped to improve the first draft...

01 January 1970 5,494 12 View

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature)?

1. What is the impact of having different scales in a survey? and how can we solve this problem before and after data collection (Literature-based reflection)? Thank you for your time and for...

03 March 2021 2,870 3 View

No title

02 March 2021 3,060 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

I am interested in medicinal chemistry field, which books are highly recommended to learn from?

I am at the beginner level in drug design and drug discovery, and I am interested to learn more about this field. Which books are highly recommended to start from and gives me all essential...

02 March 2021 8,437 2 View

Please suggest a good text book for "Research Methodology in Life Sciences". Which book would be good for PhD Scholars?

Please provide Book Title and author name

02 March 2021 9,059 3 View

Could any one guide me, to write research proposal for grant? ?

We have one plant, the local people using this for controlling blood sugar, the toxicity and antidiabetic activity of the plant is not reported yet, please guide from whag should be the process ?...

02 March 2021 2,300 1 View

How does one access the Cranet survey data on HRM practices?

Hello, The Cranet website does not provide any lead to the data obtained from their multinational survey on HRM practices. Any help on accessing the data would be most appreciated. Thank...

01 March 2021 9,536 3 View

Is anyone familiar with the cyclic compressive fatigue testing (BS EN 12697 - 25) ?

I would like to get more information on the cyclic compressive fatigue testing (BS EN 12697 - 25) which is typically done for bituminous material in pavement design. Any one can advise on the...

28 February 2021 2,004 3 View

What is Flat Lens Antenna?

28 February 2021 5,433 3 View

Can impedance of antenna be less than 50 ohms?

I am simulating helix antenna in hfss, right now, giving excitation with 50 ohms port. When I see the results of Z parameter (real). It shows lower than 50 ohms. Do not understand, if it can be...

27 February 2021 4,218 7 View