Stratified random survey

Iowa. The State of Iowa Geological Survey and the Department of Water, Air, and Waste Management continue to aggressively monitor for pesticides in ground water in many areas of the state (47-50). EPA/OPP is collaborating with the University of Iowa and the IGS in a two-year stratified random survey of wells and farm fields in four types of hydrogeologic environments. 

Both interview and questionnaire techniques were used in this survey. Fifty, semi-structured interviews were conducted on-site with a randomly selected, representative, stratified sample of employees. (See Appendix B for an example of some of the prompt questions used in the interview note that this can only be developed after some open interviews/discussion sessions are completed.) A questiormaire was generated from the interview data and distributed to 520 staff to be completed anonymously. This produced a 45 per cent usable response rate for analysis. The objectives were to gain an understanding of the perceptions of quality within the company and readiness for change to provide baseline data for evaluation purposes to identify quality improvement opportunities and potential barriers to change and to help management develop a sense of awareness about quality and quality improvement needs in the plant. The questionnaire included measures of job satisfaction (Warr et aL, 1979), organizational commitment (Porter et al., 1974), perceptions of cooperation and morale in the plant and measures of certain job characteristics associated with quality work performance, such as skill variety, autonomy and feedback (Hackman and Oldham, 1975). 

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