I am interested in understanding the procedure for creating a new scale using the Item Response Theory and would appreciate any help or suggested readings to understand the sequential process that one must go about when creating a new scale.
In my humble opinion, one of the great books for introduction to IRT (and for test construction) was written by Mark Wilson. This could be a good starting point.
Wilson, M. (2005). Constructing measures: An item response modeling approach. Mahwah, NJ: Erlbaum.
A couple of resources for your thoughts:
Applying the Rasch Model: Fundamental Measurement in the Human Sciences ...
By Trevor G. Bond, Christine M. Fox
Making Measures By Wright and Stone
Have you thought about the model you are going to use? Depending on it, some resources are better than others :) (e.g., if you are going to use a 2PL model, you might not want to read a lot about Rasch :)
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