1. Apparatus for testing the prerequisite reading capabilities of a subject comprising; means defining a display, control means coupled to the display for selectively generating on the display a plurality of different moving line patterns, one pattern at a time, with each pattern comprising at least one line segment, said control means comprising a control member manually controlled by an operator disposed remote from the display but in a position to note the accuracy of the reproduction by the subject, like ones of said line patterns being consistently generated from one display time to the next, said line patterns adapted to be copied by the subject being tested to assess prerequisite reading capabilities, means used by the subject disposed separate from the display, in non-overlying relationship with the display, and upon which the subject, after observation of the moving line pattern, copies the line pattern, and means for correlating the skills of the subject to reproduce the line pattern with prerequisite capabilities for reading of the subject.