The effects of training on internal reading flexibility (intra-article flexibility) and the relationships between such flexibility and overall reading speed, reading comprehension, anxiety level, and introversion-extraversion were investigated. Flexibility coefficients were computed before and after training for the total group of 255 college subjects and for subgroups of 127 subjects who fell in the top or bottom half of the distribution for reading speed. Desensitizing exercises were employed to allow subjects to adapt to the reading interruptions necessary to measure internal flexibility. Subjects were enrolled in a college reading program. Pretest and post-test measures were made with alternate forms of the Diagnostic Reading Test: Survey Section. Test passage difficulty was determined by the cloze technique. Anxiety level and introversion-extraversion were measured by the SA-S Senior Scales. Results indicated that it was possible to desensitize subjects to allow for measuring internal flexibility. However, the statistical procedures used and/or the restricted range of reading ability and reading difficulty of the selections may have obscured between group differences of flexibility coefficients. References are included. (WB)