Forty-eight cases of collegiate lecture rooms were psychologically assessed by students during regular classes through a semantic differential technique. Multi-variable analyses were then applied first to extract the structure of evaluation and then to predict students' satisfaction which represented the first and primary factor, namely, “overall evaluation.” Other factors were “lecture content,” “acoustics” and “communication.” Spatial and environmental planning guidelines for enhancing students' satisfaction as interpreted from the multiple-regression equation which explained 72.3% of variance were lower students' density, higher level of illumination, curbing of natural lighting and increased main window area per total wall area. Larger room depth as well as larger desk size increased satisfaction. Illumination, however, should be given priority over room depth. Twenty to thirty percent of illumination increase should compensate twenty percent decrease in room depth.
