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The competition in the software market demands that the time required for any software product to reach the market be reduced if the product is to survive competition from other developers. The pursuit of this goal has led to the adoption of agile software development methodologies. While other agile methodologies provide guidelines as to the software engineering (SE) practices to be used during the development lifecycle, Scrum does not. The purpose of this study is twofold: first, to identify the usage and level of importance of software engineering practices in the Scrum development environment; and second, to investigate how Scrum teams adopt an appropriate set of SE techniques and whether a hybrid Scrum/Extreme Programming (XP) methodology is an appropriate approach to take. This research was conducted by examining sample data from five organizations using the Scrum methodology. The sample included a range of industries including communications and embedded systems, financial asset management, software development houses and consulting firms in South Africa. The study employed a mixed method approach. A key finding was that, regardless of the fact that Scrum does not explicitly recommend engineering practices, there was extensive use of these practices by all of the participating organizations. The study also found that the lack of software engineering practices in Scrum does not constitute a barrier to a successful adoption of Scrum, provided the 'inspect and adapt' principle inherent in Scrum is properly followed. The study discusses the findings, explains the implications and suggests future research. [ABSTRACT FROM AUTHOR]