Table 4 One sample T -test Causes t p...

Table 4

One sample T-test

Causes	t	p	Cohen’s d	SE Cohen’s d	95% CI for Cohen’s d
Causes	t	p	Cohen’s d	SE Cohen’s d	Lower	Upper
Competency of the workers on the site	−2.436	0.017	−0.281	0.118	−0.511	−0.05
Negligence of the workers on the site	−3.036	0.003	−0.351	0.119	−0.583	−0.116
Negligence of site supervisors	−3.236	0.002	−0.374	0.119	−0.607	−0.138
Competence of site supervisor	−3.119	0.003	−0.36	0.119	−0.593	−0.125
Competence of the clerk of work	−3.556	<0.001	−0.411	0.120	−0.645	−0.174
Incomplete drawings	−1.768	0.081	−0.204	0.117	−0.432	0.025
Inadequate specifications	−2.069	0.042	−0.239	0.117	−0.468	−0.009
Poor construction schedule	−3.677	<0.001	−0.425	0.121	−0.66	−0.187
Poor quality of materials	−4.700	<0.001	−0.543	0.124	−0.784	−0.299
Poor coordination of contract documents	−3.760	<0.001	−0.434	0.121	−0.670	−0.196
Incomplete documents	−3.412	0.001	−0.394	0.120	−0.628	−0.158
Variation order	−2.069	0.042	−0.239	0.117	−0.468	−0.009
Lack of sustainability plan	−3.424	0.001	−0.395	0.120	−0.629	−0.159
Poor payment plan	−5.653	<0.001	−0.653	0.127	−0.900	−0.401
Poor weather	−6.912	<0.001	−0.798	0.133	−1.056	−0.536
Non-adherence of green/sustainable rating tools	−3.153	0.002	−0.364	0.119	−0.597	−0.129
Complexity of designs	−5.301	<0.001	−0.612	0.126	−0.857	−0.364
Poor communication on the site	−3.926	<0.001	−0.453	0.121	−0.690	−0.214
Lack of information on the nature of the site	−4.558	<0.001	−0.526	0.123	−0.766	−0.283
The high workload of the site workers	−5.372	<0.001	−0.62	0.126	−0.866	−0.371
Poor quality management framework	−3.25	0.002	−0.375	0.119	−0.608	−0.14
Poor health and safety frameworks	−6.519	<0.001	−0.753	0.131	−1.007	−0.494
Competency of the construction manager	−2.778	0.007	−0.321	0.118	−0.552	−0.088
Competency of the project manager	−2.901	0.005	−0.335	0.119	−0.567	−0.101
Competency of the construction company	−2.613	0.011	−0.302	0.118	−0.532	−0.069
Poor communication between the site and the company’s office	−2.883	0.005	−0.333	0.119	−0.564	−0.099
Poor procurement management plan	−4.585	<0.001	−0.529	0.123	−0.77	−0.286
The lack of adequate plants and equipment	−4.064	<0.001	−0.469	0.122	−0.706	−0.229
Poor supply chain management plan	−3.207	0.002	−0.370	0.119	−0.603	−0.135
Poor site management plan	−3.874	<0.001	−0.447	0.121	−0.683	−0.208
Inadequate funding	−2.196	0.031	−0.254	0.117	−0.483	−0.023
Inadequate funding by the client	−3.482	<0.001	−0.402	0.120	−0.636	−0.165
Insufficient information government policy	−4.503	<0.001	−0.520	0.123	−0.760	−0.277
The problems of contractor’s cash flow	−3.512	<0.001	−0.406	0.120	−0.640	−0.169

Causes	t	p	Cohen’s d	SE Cohen’s d	95% CI for Cohen’s d
Causes	t	p	Cohen’s d	SE Cohen’s d	Lower	Upper
Competency of the workers on the site	−2.436	0.017	−0.281	0.118	−0.511	−0.05
Negligence of the workers on the site	−3.036	0.003	−0.351	0.119	−0.583	−0.116
Negligence of site supervisors	−3.236	0.002	−0.374	0.119	−0.607	−0.138
Competence of site supervisor	−3.119	0.003	−0.36	0.119	−0.593	−0.125
Competence of the clerk of work	−3.556	<0.001	−0.411	0.120	−0.645	−0.174
Incomplete drawings	−1.768	0.081	−0.204	0.117	−0.432	0.025
Inadequate specifications	−2.069	0.042	−0.239	0.117	−0.468	−0.009
Poor construction schedule	−3.677	<0.001	−0.425	0.121	−0.66	−0.187
Poor quality of materials	−4.700	<0.001	−0.543	0.124	−0.784	−0.299
Poor coordination of contract documents	−3.760	<0.001	−0.434	0.121	−0.670	−0.196
Incomplete documents	−3.412	0.001	−0.394	0.120	−0.628	−0.158
Variation order	−2.069	0.042	−0.239	0.117	−0.468	−0.009
Lack of sustainability plan	−3.424	0.001	−0.395	0.120	−0.629	−0.159
Poor payment plan	−5.653	<0.001	−0.653	0.127	−0.900	−0.401
Poor weather	−6.912	<0.001	−0.798	0.133	−1.056	−0.536
Non-adherence of green/sustainable rating tools	−3.153	0.002	−0.364	0.119	−0.597	−0.129
Complexity of designs	−5.301	<0.001	−0.612	0.126	−0.857	−0.364
Poor communication on the site	−3.926	<0.001	−0.453	0.121	−0.690	−0.214
Lack of information on the nature of the site	−4.558	<0.001	−0.526	0.123	−0.766	−0.283
The high workload of the site workers	−5.372	<0.001	−0.62	0.126	−0.866	−0.371
Poor quality management framework	−3.25	0.002	−0.375	0.119	−0.608	−0.14
Poor health and safety frameworks	−6.519	<0.001	−0.753	0.131	−1.007	−0.494
Competency of the construction manager	−2.778	0.007	−0.321	0.118	−0.552	−0.088
Competency of the project manager	−2.901	0.005	−0.335	0.119	−0.567	−0.101
Competency of the construction company	−2.613	0.011	−0.302	0.118	−0.532	−0.069
Poor communication between the site and the company’s office	−2.883	0.005	−0.333	0.119	−0.564	−0.099
Poor procurement management plan	−4.585	<0.001	−0.529	0.123	−0.77	−0.286
The lack of adequate plants and equipment	−4.064	<0.001	−0.469	0.122	−0.706	−0.229
Poor supply chain management plan	−3.207	0.002	−0.370	0.119	−0.603	−0.135
Poor site management plan	−3.874	<0.001	−0.447	0.121	−0.683	−0.208
Inadequate funding	−2.196	0.031	−0.254	0.117	−0.483	−0.023
Inadequate funding by the client	−3.482	<0.001	−0.402	0.120	−0.636	−0.165
Insufficient information government policy	−4.503	<0.001	−0.520	0.123	−0.760	−0.277
The problems of contractor’s cash flow	−3.512	<0.001	−0.406	0.120	−0.640	−0.169

Source(s): Table by author

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