This paper has two purposes: (1) to describe the general characteristics of a research project on which this is one part; and (2) to report an experimental attempt at improving academi c performance of low achieving ninth grade students through self concept enhancement (Experiment B). Briefly discussed are the experiments and the research design of the other phases of the project--dealing with parents of low achieving students, and with the effects of counseling on such students. Experiment B sought to determine whether positive evaluations of low achieving students by a so-called "expert" (the experimenter) could significantly change self concept of ability in the students and whether such change would show up later in change in school achievement. Analysis of data shows that there was not significant proportion of changers in either self concept or grade point average. The use of an "expert" does not seem to be an efficient method of increasing either self concept of ability or school performance in this sample. (NH)