As in nursing, recent curriculum reform in radiographer education has resulted in the development of undergraduate programmes, and a study referred to in this paper investigated the activities of supervising radiographers in support of the undergraduate curriculum. Following on from 'ward learning environments' research in nursing, the most important activities which assist radiography students' clinical learning were investigated by means of the Delphi technique. At the design stage, a deficiency in previous work using the technique was identified, in that decisions relating to consensus among research respondents appeared to be based on arbitrary or post hoc rationales rather than predetermined or objective criteria. As the Delphi technique is being increasingly employed in nursing and similar research, it is important to explore issues of consensus, validity and reliability. The paper makes recommendations for improving these aspects in future studies.

A holistic approach to competence seems to be compatible with the use of portfolios to assess competence in nursing students, but the concept and its implementation is still evolving. A variety of assessment methods are needed for assessment and portfolios appear to have the potential to integrate these. Reflection is an essential component of a portfolio, as are the student-teacher relationship and explicit guidelines for constructing the portfolio. Issues of rigour in assessment of portfolios need to be addressed, but the assessor's professional judgement will inevitably enter into this assessment.

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The article concludes by calling for more in-depth consideration at the research planning stages of the underlying assumptions of methodological approaches that may be used to underpin focus group research and methods to be used to analyse and report the data generated.

The findings show that holders of such posts need to have appropriate previous knowledge, skills and personal characteristics, as these seem to influence their ability to integrate the four domains of the role and thus achieve the requirements of the post.