Table 1.

Past tense profile of children with specific language impairment (SLI).

Characteristic	Studies
Rates of regular past tense marking that are lower than age- and language-matched controls	Conti-Ramsden, Botting, & Farraegher, 2001; Leonard, Bortolini, Caselli, McGregor, & Sabbadini, 1992; Marchman, Wulfeck, & Ellis Wesimer, 1999; Oetting & Horohov, 1997; Rice, Wexler, & Cleave, 1995; Rice, Wexler, & Hershberger, 1998; Rice, Wexler, & Redmond, 1999; van der Lely & Ullman, 2001; Windsor, Scott, & Street, 2000
Rates of irregular marking that are lower than age-matched but not language-matched controls	Leonard, Bortolini, Caselli, McGregor, & Sabbadini, 1992; Leonard, Eyer, Bedore, & Grela, 1997; Oetting & Horohov, 1997
Lower rates of over-regularizations than those of controls	Leonard, Eyer, Bedore, & Grela, 1997; Oetting & Horohov, 1997
Rates of commission errors that are similar to controls	Cleave & Rice, 1997; Eadie, Fey, Douglas, & Parsons, 2002; Leonard, Bortolini, Caselli, McGregor, & Sabbadini,1992
Differential marking of regular and irregular forms as shown in different analyses or tasks (with a denominal/deverbal probe being one type of task)	Leonard, Eyer, Bedore, & Grela, 1997; Marchman, Wulfeck, & Ellis Wesimer, 1999; Oetting & Horohov, 1997