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- W1917383790 abstract "Accuracy of quantity surveyors’ preliminary cost estimates was evaluated through a questionnaire survey administered on quantity surveying firms in Nigeria. A total of 24 quantity surveying firms were surveyed and data on 40 completed and on-going projects collected to quantitatively measure the degree of accuracy of quantity surveyors’ preliminary cost estimates. The survey also evaluated preliminary cost estimating procedures employed generally. Within the limitation of the sample data analysed, it was concluded that quantity surveyors’ preliminary cost estimates in Nigeria were not significantly biased. However, the consistency of the estimates was found to be unsatisfactory and as such, an issue that needs to be addressed. Using analysis of variance (ANOVA), the paper also concluded that estimating accuracy improved with increasing contract size. However, for very large contracts, this was found to be contrary; the reasons adduced being time lag between preliminary cost estimate and invitation of tenders and political factors that are common with such projects." @default.
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- W1917383790 date "2011-11-05" @default.
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- W1917383790 title "An Assessment of the Accuracy of Quantity Surveyors' Preliminary Cost Estimates in Nigeria" @default.
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