Hello,
my prof wants me to do a Rasch Analysis for my paper. My aim is to check if there are some factors (like gender, age, etc...) that can explain if someone is willing to answer political questions (0/1 binary code).
I got some nice data, but I'm not sure about the use of Rasch. I took about lets say 30 variables with political questions and recoded them (0 = no answer given, 1 = answer given). I read the Stata article about Rasch but I think this is rather confusing (http://www.stata.com/support/faqs/statistics/rasch-model/) In the tutorial, they want to figure out if some math questions are harder than others. Why do I need a complex model here? I'd just look at the descriptive statistics and check the percentage answered correctly. The lower the rate, the harder the math question?. Duh, isn't that kinda obvious? I stil dont get the benefits of a Rasch model here. Could someone explain? Btw, I use Stata 12.
Thank you!
my prof wants me to do a Rasch Analysis for my paper. My aim is to check if there are some factors (like gender, age, etc...) that can explain if someone is willing to answer political questions (0/1 binary code).
I got some nice data, but I'm not sure about the use of Rasch. I took about lets say 30 variables with political questions and recoded them (0 = no answer given, 1 = answer given). I read the Stata article about Rasch but I think this is rather confusing (http://www.stata.com/support/faqs/statistics/rasch-model/) In the tutorial, they want to figure out if some math questions are harder than others. Why do I need a complex model here? I'd just look at the descriptive statistics and check the percentage answered correctly. The lower the rate, the harder the math question?. Duh, isn't that kinda obvious? I stil dont get the benefits of a Rasch model here. Could someone explain? Btw, I use Stata 12.
Thank you!
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