References
- Dwyer , F. M. 1970 . Effect of questions on visual learning . Percept. & Motor Skills , 30 : 51 – 54 .
- Frase , L. T. 1968 . Questions as aids to reading: Some research and theory . Amer. Educ. Res. J. , 5 : 319 – 330 .
- Kurtz , A. K. , Walter , J. S. and Brenner , H. 1950 . The effects of inserted questions and statements on film learning , The Pennsylvania State College . Instructional Film Research Report (Technical Report SDC 269–7–16)
- Sparks , J. N. 1963 . Expository notes on the problem of making multiple comparisons in a completely randomized design . J. Exper. Educ. , 4 : 344 – 349 .