The test used a number of passages from newspapers, magazines, and booksas well as a standard reading test. "The reading ability of parents and factors associated with reading difficulty of parent-education materials." University of Iowa studies in child welfare 8:1132. Visibility, reflex blink technique, rate of work (reading speed eye movements. 1932 A teacher's word book of the twenty thousand words found most frequently and widely in general reading for children and young people. 54 Wilber Schramm interviewed 1,050 newspaper readers. PDW Percentage of difficult words not on the DaleChall word list. Available online at : m Harris,.