Table 5.

Standard scores and Z score conversions of SLI and ADHD+LI group performances across the psycholinguistic indices.

Measure	SLI		ADHD+LI
	Standard score	Z score	Standard score	Z score
Nonword repetition	76.6	−1.57	81.0	−1.27
Sentence recall	53.5	−3.10	64.5	−2.37
Third person present	13.0	−5.80	49.6	−3.36
Regular past	37.5	−4.17	60.4	−2.64
Irregular finite	<1	−7.14	47.1	−3.53
Irregular correct	78	−1.48	73.6	−1.76

Note. SLI = specific language impairment; ADHD = attention-deficit/hyperactivity disorder; LI = language impairment.