Respond to the following short answer questions:
D4.1 Interpreting Reliability. Interpret the interrater reliability and paired t test results for the ‘visualization test’ and visualization’ scores using Output 7.2. What might be another reason for the pattern of findings obtained besides those already discussed in Chapter 7?
D4.2 Interpreting Validity. If one were to delete one of the 14 items in Output 7.3 based on factor analysis which one would it be? Explain your answer.
D4.3 Interpreting Internal Consistency. Interpret the Chronbach alphas in Output 7.4 a, b, and c. What is the internal consistency reliability? Explain your answer.
For a long term period, IBS will be a cost saving construction method. The formwork that are made by steel and aluminium allow for repetitive use and this leads to considerable cost saving. Besides, IBS also have the flexibility of design. It can provide some additional aesthetic value to the project design and at the same time provide higher quality and better finishes. IBS also have its disadvantages. The initial cost of IBS is usually high. The initial cost is for supporting machinery and factory. The prefabrication system relies greatly on sophisticated machineries, which have to be well controlled and maintained by skilled operators. Problem of joints is one of the major problems in building constructed using IBS which leads to water leakage. Producing IBS components require a large working area for setting up factory, machineries and storage to store the component. IBS may also cause delay because of supply delay and shortage of raw materials. Delay may also happen due to lack of expertise. 2.2 Cost issues 2.2.1 Incentives for Industrialized Building System (IBS) are not sufficient Giving out incentive is one of the ways to attract more IBS user. The government through CIDB has introduced exemption of the construction levy (levy – 0.125 % of total cost of the project according to Article 520) as an incentive on contractors that used IBS at least 50% IBS components in construction of new residential project since 1st January 2007 (CIDB, 2010). Even though, there is only a slight increase in the number of IBS user. This can say that the incentives for IBS are not sufficient. IBS adoption requires more pull and push factors from the government. Changing from conventional method to IBS was not possible due to the small profit margin unless more attractive incentive systems and benefits which can attract the conventional user to IBS (Kamar et al 2010). 2.2.2 The availability of cheap foreign labour The availability of cheap foreign labour which offset the cost benefit of using IBS is a main cause of the slow adoption. As long as the industry can easily to obtain foreign wor>GET ANSWER