A major objective of the final evaluation (third year, 1969-70) of the Grand Forks, N.D., ESEA Title III project was to test the effects of aides groups not intimately connected with teaching through survey of parents' opinions and attitudes of student teachers in classes where aides served. In addition to this, the cost utility study was expanded to include input from school board members and negotiation teams who rated the utility value of various aide tasks. Final efforts to validate the Teacher Aide Attitude Inventory (TAAI) included input from teachers not connected with the Grand Forks school system. (The attempt was to create an instrument to be used by schools contemplating an aide program to discriminate between attitudes of teachers toward aides.) A comparison of perceptions of aides and teachers in Grand Forks on an Activity Sheet developed for evaluation of ten other teacher aide projects was carried out; it included evaluation of the compatibility between Grand Forks aides and teachers as well as contrast of responses on the Grand Forks project with those in similar projects throughout the U.S. Also, some aides participated in a study to determine whether there are valid predictors of aide success for use in hiring. (Included are explanation of procedures and summary of findings, the final version of the TAAI along with the other measurement instruments, and brief summaries of the 1967-68 evaluation and the 1968-69 evaluation (ED 035 580). (JS)