c) The methods of data collection to be use is computerised questionnaire. Computerised questionnaire which is internet survey method is use to collect primary data. Internet survey method can obtain the information from the academic employees by directing them to go to a particular website and answer the series of question display on the websites. One of the tools that is suitable for the study is Google Form. It is very convenient to use and cost efficiency. By using Google Form, it is significantly reduces the cost of preparation and administration. There is no money spent on paper, printing or post. In addition, internet survey method also increase the accessibility for the respondents to access questionnaires with the use of mobile devices, tablets, laptops, desktops, and so on.
https://explorance.com/blog/10-key-advantages-of-using-online-surveys-2/
b) Simple random sampling technique is use for this study, which is a method of giving every subject in a population equal chance of appearing in the selection. Research instrument acquire for data collection is a computerised questionnaire focused on the variables of the survey, which is the retention of employee, empowerment, training, compensation and performance appraisal. (Omotayo Adewale and Adenike Anthonia, 2014)