A post script to reliability and validity
Looking over my material on validity and reliability I realised that I hadn’t mentioned triangulation as a method to add strength to the study. Although I did say that photographing an image or a series of images simultaneously from a different angle would add to the validity of the study, I should add that by recording the study ethnographically or by audio tape for example would provide additional material to substantiate what is being observed. These methods, like the process of taking photographs, are also subject to the effects of the researcher – Personal Reactivity – and also Procedural Reactivity, where the making of the evidence interferes with the evidence despite the professionalism of the researcher. Regards, Kim.
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