[HTML][HTML] Saturation in qualitative research: exploring its conceptualization and operationalization

B Saunders, J Sim, T Kingstone, S Baker, J Waterfield… - Quality & quantity, 2018 - Springer
Saturation has attained widespread acceptance as a methodological principle in qualitative
research. It is commonly taken to indicate that, on the basis of the data that have been …

Can sample size in qualitative research be determined a priori?

J Sim, B Saunders, J Waterfield… - International journal of …, 2018 - Taylor & Francis
There has been considerable recent interest in methods of determining sample size for
qualitative research a priori, rather than through an adaptive approach such as saturation. …

Making words count: the value of qualitative research

R Johnson, J Waterfield - Physiotherapy research international, 2004 - Wiley Online Library
In the current climate of evidence‐based practice, physiotherapy is urged to prove its worth
via rigorous scientific research. However, there are concerns that limited methodologies are …

[HTML][HTML] Focus group methodology: some ethical challenges

J Sim, J Waterfield - Quality & quantity, 2019 - Springer
Focus group methodology generates distinct ethical challenges that do not correspond fully
to those raised by one-to-one interviews. This paper explores, in both conceptual and …

Clinical assessment of pain by the visual analogue scale

J Waterfield, J Sim - British Journal of Therapy and …, 1996 - magonlinelibrary.com
This article reviews the use of the visual analogue scale as a method of assessing pain in
the everyday clinical situation. The advantages and disadvantages of this method of …

Effectiveness of specific neck stabilization exercises or a general neck exercise program for chronic neck disorders: a randomized controlled trial

C Griffiths, K Dziedzic, J Waterfield, J Sim - The Journal of rheumatology, 2009 - jrheum.org
Objective. In a cohort of primary care patients with chronic neck pain, to determine whether
specific neck stabilization exercises, in addition to general neck advice and exercise, provide …

Perineal resuturing versus expectant management following vaginal delivery complicated by a dehisced wound (PREVIEW): a nested qualitative study

L Dudley, C Kettle, J Waterfield, KMK Ismail - BMJ open, 2017 - bmjopen.bmj.com
Objective To explore women's lived experiences of a dehisced perineal wound following
childbirth and how they felt participating in a pilot and feasibility randomised controlled trial (…

[HTML][HTML] Evaluating Acupuncture and Standard carE for pregnant women with Back pain (EASE Back): a feasibility study and pilot randomised trial

…, C Kettle, J Kigozi, M Lewis, A Lloyd, J Waterfield… - 2016 - ncbi.nlm.nih.gov
Background: Many pregnant women experience low back pain. Acupuncture appears to be
a safe, promising intervention but evidence is needed about its clinical effectiveness and cost…

The sample size debate: response to Norman Blaikie

J Sim, B Saunders, J Waterfield… - International Journal of …, 2018 - Taylor & Francis
In his detailed response to our paper on sample size in qualitative research, Norman Blaikie
raises important issues concerning conceptual definitions and taxonomy. In particular, he …

Validity, reliability and responsiveness in the assessment of pain

J Sim, J Waterfield - Physiotherapy Theory and Practice, 1997 - Taylor & Francis
This paper examines some methodological issues in the assessment of pain, with particular
reference to validity, reliability and responsiveness. These issues are illustrated with …