PhD Final Thesis April 2013.pdf - Anglia Ruskin Research Online

Thesis Keith Gale 2013those for framework may exceed 1.000. Reference to selected case study projectsindicate that on six occasions (out of 60) another tender other than the lowest wasrecommended for acceptance.All project details, scores and values are shown in Appendix 15.8.13 Empirical analysis for production costsA check for reliability of scales for classification of raw data (financial values) andthe use of cost variances form the underlying statistical construct. Production costsare checked for internal consistency using Cronbach’s alpha coefficient. Results fromthis analysis are shown in Table 8.4.Table 8.4: Reliability statistics for production costsCronbach's AlphaN of Items.745 3The result exceeding 0.7 for all sections of analysis can be considered reliable. Agraphical representation is used to identify frequencies, distribution and profiles ofaggregated values for production costs set against tender values. A histogram ofquotients for discrete projects is shown at Figure 8.3, with framework projects shownat Figure 8.4.184