Table 4: The impact of inadequate H&S interventions on project parameters.

No.	Project Parameter	Mean	Std. Dev.	RII (%)	T Value	P Value Sig.	Rank
A1	Labour productivity	3.71	0.78	74.29	8.08	0.000*	2
A2	Project schedule	3.42	0.94	68.31	3.89	0.000*	4
A3	Quality	3.91	0.88	78.18	9.10	0.000*	1
A4	Cost of construction	3.40	0.95	68.05	3.72	0.000*	5
A5	Client satisfaction	3.62	0.99	72.47	5.54	0.000*	3
All the items		3.61	0.62	72.26	8.64	0.000*