Table 3.

Mean group measures for age and occupation

	English 1st Language	N	Mean	SD	Age	N	Mean	SD	Student	N	Mean	SD
Sum 18 Item	Yes	229	37.96	7.72	Younger	133	38.56	7.66	Yes	114	38.19	7.99
	No	28	39.57	9.37	Older	123	37.58	8.14	No	143	38.09	7.88
Sum Production	Yes	236	20.05	4.56	Younger	138	20.42	4.54	Yes	117	20.15	4.65
	No	29	20.93	5.18	Older	126	19.80	4.71	No	148	20.14	4.63
Sum Perception	Yes	238	16.58	4.37	Younger	141	16.54	4.29	Yes	116	17.00	4.55
	No	29	17.31	5.15	Older	125	16.75	4.63	No	151	16.40	4.38
Sum EQ	Yes	224	17.34	5.72	Younger	133	18.28*	5.40	Yes	112	17.35	5.87
	No	29	19.28	5.85	Older	119	16.71*	6.05	No	141	17.73	5.68

All t-tests NS but for: *T=2.17(df=250), p=0.031