A reading program's effectiveness can be assessed by investigating skills improvement together with attitude improvement. Frequently, teachers make questionable assumptions about student reading attitudes. To provide educators with a more accurate picture of students' expressed feelings, students' attitudes toward reading should be measured with formal assessment techniques. After reviewing the nature of reading attitudes, various attitude measurement techniques are described, such as Likert scales, the Guttman cumulation technique, the semantic differential, interviews, and observation rating scales. A source book of 14 reading attitude instruments is appended. (Author)