REFERENCES
- Baker , E. L. and O'Neil , H. 2010 . Obvious and subtle contributions of Merlin C. Wittrock to programmatic R&D . Educational Psychologist , 45 : 66 – 68 . this issue
- Mayer , R. E. 2010 . Merlin C. Wittrock's enduring contributions to the science of learning . Educational Psychologist , 45 : 46 – 50 . this issue
- Romberg , T. A. 2010 . Wittrock's influence on mathematics education: Some personal comments . Educational Psychologist , 45 : 61 – 63 . this issue