Who are some leading experts on nonprofit organizations and tax filing?

Hi there! I'm looking for someone who can help me better understand nonprofits and how they file their taxes. It's for an ongoing research. Preferably someone who is nationally known on this topic...

05 June 2019 4,078 3 View

Does asking "Did you have any problems?" versus "What problems did you have?" get you more and better responses?

My context is survey question development and usability testing. We'll have participants answers some questions or do a task and then debrief them to find out what issues they had. Some colleagues...

07 August 2018 9,149 2 View

What are some good publishers for social science research methodology text books?

I'm looking for opinions based on experiences here. I know (generally) the range of publishers for social science and stats books, and have used intro methods and stats books from a range of...

11 December 2015 918 7 View

What are acceptable/common agreement rates or kappas for industry and occupation (I&O) codes?

There is a more detailed post on this project...

04 May 2015 9,732 2 View

What are the major (and minor) surveys that interview teens?

Greetings, I'm survey methodologist for the California Health Interview Survey (CHIS) and I'm working on a research project on obtaining parental permission for our teen interview. As part of that...

04 May 2015 9,704 7 View

Has anyone seen (or calculated themselves) performance benchmarks between Stata and SAS?

I have a good sense of how Stata and SAS differ in how they handle data files (with SAS reading only one observation into memory at a time and being able to handle multiple files at one, and Stata...

01 February 2015 3,874 8 View

How do everyday people think about their "public program participation" (e.g., foodstamps, Medicaid)?

In survey research we often do extensive cognitive pretesting and focus groups to understand how respondents think, in their everyday lives, about the complex and formal ideas and topics we want...

01 February 2015 2,365 8 View

Within-household interviews: Better to ask for more upfront or later?

For my survey and decision science friends...Do you think it's better to ask for multiple interviews in the household upfront (e.g., after the screener) or to wait until later (e.g., after the...

31 December 2014 4,447 4 View

What are the proper techniques for analyzing reliability of categorical variables with a large number of categories?

31 December 2014 8,112 9 View

Can anyone recommend a CV category for "edited but not peer-reviewed" articles?

I have several articles in a publication in my field that is edited but not peer-reviewed (http://surveypractice.org/...Note that their site says they are peer-reviewed, but I know form experience...

31 December 2014 4,569 1 View

How to compare two groups with only two measurements?

Hiiiii everyone! I have an enquiry on statistical analysis. I was looking for many forum and it's still cannot solve my problem. I want to compare means of two groups of data but only with two...

03 March 2021 8,796 3 View

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10?

What's the best way to measure growth rates in House sparrow chicks from day 2 to day 10? Since, the growth curve from day 2 to 10 won't be like the "Logistic curve" it might not follow logistic...

03 March 2021 1,401 3 View

Logistical regression using SPSS for a dichotomous dependent variable, with an independent variable of 1, 2, 5 and 10 seconds?

I have an experiment with 28 participants The independent variable is the times 1, 2, 5, and 10 used as the cross hairs during a task These 4 times were tested using 4 different blocks, each...

03 March 2021 9,692 2 View

How to increase a model accuracy ?

dear community, my model is based feature extraction from non stationary signals using discrete Wavelet Transform and then using statistical features then machine learning classifiers in order to...

03 March 2021 6,994 5 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

Resistor definition in Piezoelectric bimorph with ANSYS workbench

Hello, good day! I am trying to simulate similar bimorph piezoelectric harvester with below commands. However, the output power doesn't change with resistor value. Please help to find the reason. ET,10,CIRCU94,0 !SET UP RESISTOR R,1,100000 !RESISTANCE VALUE TYPE,10 !SET ELEMENT TYPE E,1,2 !CREATE RESISTOR BETWEEN NODES 1 AND 2 Thanks in advance Regards,

02 March 2021 0 0 View

What degree of missing data in a particular case/participant results in Expectation-Maximisation no longer working?

I'm dealing with a mediation model and am using the PROCESS module in SPSS. Due to SPSS and PROCESS being limited in the imputation methods - being unable to handle multiple imputation - the other...

02 March 2021 4,362 1 View

Do I need to do linear regression before running mediation analysis using PROCESS MACRO by Hayes ?

I just wanted to check if I need to run a linear regression separately if I am using PROCESS MACRO to run mediation analysis. Thank you.

02 March 2021 4,359 3 View

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02 March 2021 3,060 3 View

Why are the velocities so high in my Boussinesq approximation Fluent simulation?

Hello, I have a mechanism where air rises due to convective flows. In this simulation, nothing is driving the air except this. I understand that the Boussinesq approximation only works for small...

02 March 2021 4,910 3 View