Psychometric evaluation of the patient satisfaction with logistical aspects of navigation (PSN-L) scale using item response theory.
Carle AC, Jean-Pierre P, Winters P, Valverde P, Wells K, Simon M, Raich P, Patierno S, Katz M, Freund KM, Dudley D, Fiscella K. Psychometric evaluation of the patient satisfaction with logistical aspects of navigation (PSN-L) scale using item response theory. Med Care. 2014 Apr; 52(4):354-61.