To integrate findings concerning the influence of productive factors on student achievement and attitudes across various disciplines and ages, nine regression studies of National Assessment of Educational Progress samples containing a total of 15,802 students were quantitatively synthesized. Correlations and standardized regression weights for achievement and attitude and nine productive factors were compiled for four subjects--math, science, social studies and reading,--and two age groups--13- and 17-year olds. The effects of student socioeconomic status (a proxy for ability) and motivation; amount and quality of instruction; school, home, and peer-group environments; and exposure to television, when controlled for one another and for race and gender, are generally significant and consistent across subjects and age for achievement and attitude outcomes. The over-all signs and apparent influences of each factor were positive except for television viewing which was negatively associated with achievement and attitude. (Author/PN)