This 1979 report, prepared from data supplied by Educational Research Service, Inc., deals specifically with 1978-79 comparative data about salaries paid to principals and assistant principals in approximately 1,100 public school districts. Section 1 compares the lowest and highest 1978-79 salaries paid to principals and assistant principals, using school district enrollment stratum as a comparative factor. Section 2 discloses a similar comparison of salaries paid, using per pupil expenditure in the school system as a factor for comparison. Section 3 contains a trend analysis of salaries paid to a selected group of administrators using data from 1977-78 and 1978-79. Section 4 discloses the mean of average daily rates paid principals and assistant principals during 1978-79 in reporting school districts, by geographic region. Caution should be used when drawing inferences from survey data because of the sampling variance associated with studies of this type. (Author/MLF)