Adam Carle, Division of Health Policy and Clinical Effectiveness
21 August 2009
Equation C.2.2 contains a typographical error. It should not include the line reading B_1j=B_1+u_1j. This line indicates a random effect for family income. It does not belong in the fixed effects only model. When reading these equations, please ignore this typographical error.
Correction
21 August 2009
Equation C.2.2 contains a typographical error. It should not include the line reading B_1j=B_1+u_1j. This line indicates a random effect for family income. It does not belong in the fixed effects only model. When reading these equations, please ignore this typographical error.
Competing interests
None.