Table 17.6 ABS Evaluation Summary

 

Reliability		Validity		Responsiveness
Rigor	Results	Rigor	Results	Rigor	Results	Floor/ceiling
+++	+++(IO) +++(IC)	++	++	++	++	N/A

NOTE: +++=Excellent; ++=Adequate; +=Poor; N/A=insufficient information; TR=Test re-test; IC= Internal Consistency; IO=Interobserver; Varied (re. floor/ceiling effects; mixed results).