MAXIMIZING BOTH EXTERNAL AND INTERNAL VALIDITY IN LONGITUDINAL TRUE EXPERIMENTS WITH VOLUNTARY TREATMENTS:THE "COMBINED MODIFIED" DESIGN
Saved in:
BRAVER, S.L., ET AL., MAXIMIZING BOTH EXTERNAL AND INTERNAL VALIDITY IN LONGITUDINAL TRUE EXPERIMENTS WITH VOLUNTARY TREATMENTS:THE "COMBINED MODIFIED" DESIGN. EVALUATION AND PROGRAM PLANNING, Vol. 19, no. 4 (1996), NEW YERSEY, PERGAMON, 287-300 p.
Ref.
95570
Location:
DFA R.134
Palabras clave:
Estudio longitudinal, Evaluación de servicios, Métodos de evaluación, Programas, Voluntariado
Estudio longitudinal, Evaluación de servicios, Métodos de evaluación, Programas, Voluntariado