Table 3.

All Dependent Variables and Predictors Used for Data Analyses

Variables		Measures
DV	▪ Self-Determination	Post-intervention test scores on The Arc’s Self-Determination Scale and the AIR Self-Determination Scale
	□ Transition planning knowledge	Post-intervention test scores on Whose Future Is It Anyway? knowledge test
Predictors: Personal variables	▪□ Age	Reported by teacher
	▪□ Gender	Reported by teacher
	▪□ Approximate IQ group	Reported by teacher
Predictors: Instructional variables	▪□ Rocket Reader intervention group	Group Assignment (control or Experimental group)
	▪□ # of Whose Future Is It Anyway? chapters completed by students	Reported by teacher and/or students using Teacher’s/Student’s Quick Survey
Predictors: Dispositional variables	▪□ Self-efficacy	Pre-intervention test score on Self- Efficacy and Outcome Expectancy for Educational Planning
	▪□ Outcome expectancy
	□ 2 Self-determination scores	Pre-intervention test scores on The Arc’s Self-Determination Scale and the AIR Self-Determination Scale
Predictor: Knowledge variable	▪ Knowledge of transition planning	Pre-intervention test score on Whose Future Is It Anyway? Knowledge test

Note.

^▪Variables used in multiple regression analysis with self-determination as a dependent variable;

^□Variables used in multiple regression analysis with transition planning knowledge as a dependent variable