This study reports the prevalence of writing problems exhibited by a s
ample of 1,274 middle school students from three middle schools locate
d in southeastern (n = 251), midwestern (n = 446), and western (n = 57
7) areas of the United States. The overall sample ranged in age from 1
0 to 16, and consisted of 967 white and 301 minority students. There w
ere 624 males and 650 females; socioeconomic status ranged widely, wit
h 25.9% receiving a free or subsidized lunch. About 6% were receiving
some form of special education, although none was classified as mental
ly retarded or receiving special education services in a self-containe
d setting. Reading, math, and language skills, as defined by group ach
ievement testing, were at or near the mean for each of the samples. Re
sults from the Spontaneous Writing Quotient of the Test of Written Lan
guage-2 (TOWL-2) varied across samples in the percentage of student fa
iling less than or equal to 1 standard deviation below the mean: south
eastern middle school = 42.2%, midwestern middle school = 51.3%, and t
he west coast middle school = 19.6%. The proportion of the population
falling at least 1 standard deviation below the mean reflected signifi
cant gender differences across all three sites, with males exhibiting
more difficulties than females. Racial differences and trends were fou
nd in the southeastern and western samples, respectively, with minorit
y students experiencing significantly greater difficulties than white
students. In general, the data suggest a high prevalence of writing pr
oblems in these middle school populations when compared to normal curv
e expectations, particularly when using spontaneous writing samples in
diverse samples of middle school students.