The performance of Holgate's mean ratio and correlation tests was intensively evaluated on five 48-acre forest tracts and four computer-redistributed populations with specified spatial distribution patterns generated from each tract. These two test statistics were calculated for all possible combinations of distances to thesthandtth(s < ts = 1, 2, 3, 4 andt = 2, 3, 4, 5) nearest trees from each of the 200 randomly selected points. Results indicated that the ratio test may lead to erroneous conclusions when applied to nonrandom distributions. The correlation test was very powerful in detecting regular spacing, but it was not very sensitive in detecting aggregation.