The development and validation of an instrument to measure the quality of health research reports in the lay media

Table 3 Item statistics

Item	Mean	SD	Median	Mode	Minimum	Maximum	Item-total correlation
1a	3.45	1.82	3	2	0	6	0.38
1b	3.16	2.02	3	3	0	6	0.64
1c	4.39	1.77	5	6	0	6	0.15
1d	4.18	1.73	5	6	1	6	0.11
1e	3.21	1.93	3	6	0	6	0.56
2a	3.57	1.80	4	4	0	6	0.23
2b	1.75	2.40	0	0	0	6	0.36
2c	3.57	1.77	3	3	0	6	0.62
3a	4.23	1.67	5	6	1	6	0.56
3b	3.57	1.93	4	6	0	6	0.58
3c	4.16	1.75	4	6	1	6	0.48
4a	3.77	1.65	4	6	0	6	0.62
4b	2.70	2.50	3	0	0	6	0.37
4c	3.45	1.88	4	4	0	6	0.59
5a	0.93	1.73	0	0	0	6	0.14
5b	1.04	1.76	0	0	0	6	0.35
5c	0.75	1.52	0	0	0	6	0.23
GLOBAL	4.21	1.47	4	3	2	6

The italicized figures indicate item-total correlation coefficients outside the accepted range

ISSN: 1471-2458