Mean, rank, t-test and significance of the respondents on GB site needs.
|S/n||Items||Total sample||Group 1||Group 2||t-cal||Sig.|
|21||Site assessment for contaminants||4.32||1||4.43||1||4.26||2a||1.19||0.24|
|22||Land recycling and redevelopment including brownfields, grayfield and blackfield||4.07||7||3.96||7||4.13||7||−1.06||0.29|
|23||Site repair and restoration||4.04||8a||4.13||4||4.00||11||0.74||0.46|
|24||Best green site practices e.g. avoiding compaction||3.73||15||3.46||15||3.87||14||−1.73||0.09|
|25||Restricting construction vehicle traffic driveways/accesses||3.90||13||3.74||12||3.99||12a||−1.30||0.19|
|26||Integrating landscape areas against parking spaces||3.95||11||3.70||13||4.08||9a||−2.12||0.04|
|27||Leveraging on natural environment in landscaping for controlled heating and cooling||4.13||4||3.91||9||4.24||4||−2.22||0.03|
|28||Orientating buildings for efficiency of the desired outcome (cold or heat)||4.19||3||4.22||2||4.18||5a||0.23||0.82|
|29||Site stormwater management||4.02||10||3.87||10||4.10||8||−1.26||0.21|
|30||Reusing and upgrading of old sites and buildings over greenfields||3.91||12||4.11||5||3.81||15||1.39||0.17|
|31||Reducing car dependence or sprawl to minimize pollution||4.04||8a||3.98||6||4.08||9a||−0.55||0.58|
|32||Creating an accessible pedestrian walk and bicycle paths||4.29||2||4.15||3||4.36||1||−1.33||0.19|
|35||Designating staging areas for materials||4.10||5a||3.93||8||4.18||5a||−1.33||0.18|
Note: Group 1 refers to lecturers, instructors, teachers and technologists teaching building construction and related trades in tertiary and secondary institutions. Group 2 refers to building industry workers such as engineers, architects, technicians, plumbers, etc with minimum of Senior Secondary certificate in building related trades. a = Equal ranks wherein the next rank is skipped; t-cal = Calculated t-value; Sig. = Level of significance at 0.05.
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