Purpose: Qualitative researchers have been criticised for not justifying sample size decisions in their research. This short paper addresses the issue of which sample sizes are appropriate and valid within different approaches to qualitative research. Design/methodology/approach: The sparse literature on ...
Qualitative research Interviews Focus group discussions 1. Introduction Saturation is the most common guiding principle for assessing the adequacy of purposive samples in qualitative research (Morse, 1995,2015;Sandelowski, 1995). However, guidance on assessing saturation and the sample sizes needed to re...
in its own right, but it is not the "answer to the ultimate question of life, the universe, and everything” – sometimes qualitative techniques serve the purpose better. One application area that is pre-destined for being qualitative-led is design ...
The outcome of this debate should be better nursing science since researchers are forced t... ME Duffy - 《Journal of Advanced Nursing》 被引量: 109发表: 2010年 Clinical research 3: Sample selection sizeSampleselectionQualitativedesignQuantitativedesignThis research series is aimed at clinicians who...
As design researchers, we are routinely conducting qualitative research that isgenerative, or exploratory, in nature. When using methods such asmobile ethnography,workshopsorcontextual enquiryand making decisions about sample size, the rationale(s) that underpins recommendations for number of participants ...
Research Design: Collecting and Analyzing Data Chapter 2 METHOD Presented in this chapter is the researchdesign‚ research subjects‚ research instruments‚ preparation and construction of the questionnaires‚ reliability and validity of the research instrument‚datagathering procedure and the statistic...
The design of case-control studies: the effect of confounding on sample size requirements. This paper considers the extent to which confounding effects of covariates, which are not controlled for by matching in the design, may influence the sampl... K Drescher,J Timm,KH J?Ckel - 《Statistics...
Sampling forms an integral part of the research design as this method derives the quantitative and qualitative data that can be collected as part of a research study. Sampling methods are characterized into two distinct approaches: probability sampling and non-probability sampling. Probability sampling ...
Ideally, research would collect information from every single member of the population that you are studying. However, most of the time that would take too long and so you have to select a suitable sample: a subset of the population.
Besides being preferable from a practical point of view, the data-based approach makes it easier to handle some numerical issues that gave problems in the model-based approach. A design method that minimizes the input or output peak value subject to desired output variances with no output ...