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Showing posts with label rigour. Show all posts
Showing posts with label rigour. Show all posts

Friday, 24 August 2012

Standards for Quality ?



I have a talk coming up titled What standards should be set for qualitative research conducted in a science faculty: Psychology, rigour and the politics of evidence which i will present at the Australian Conference on Science and Mathematics Education 2012, Sydney, Australia..I havent written it yet but have been reading a great paper, below and a few others

Quality in qualitative research


They propose the following standards to judge good qual research:


    • Clarification and justification;
    • Procedural rigour;
    • Representativeness;
    • Interpretative rigour;
    • Reflexivity and evaluative rigour; and
    • Transferability.

Clarification and justification
As in all forms of research, clarity of research question reflected in the aims of the study is essential for evaluating results and their interpretation. The demonstration of theoretical rigour (referring to the soundness of fit of the research question, aims and the choice of methods appropriate to the research problem11) is extremely important.
There is a wide variety of named qualitative approaches that are underpinned by particular theoretical perspectives. In addition, the researcher may use basic field research (question, investigation, interpretation). Regardless of the theoretical approach used, the choice requires justification in reference to the research question of the study.
Procedural rigour
Procedural, or methodological, rigour concerns the transparency or “explicitness” of the description of the way the research was conducted. It involves detailing issues of accessing subjects; development of rapport and trust; how data are collected, recorded, coded and analysed; and accounts of the manner in which errors or subject refusals are dealt with.4,11,22 In this regard, readers and reviewers may ask the following questions while examining descriptions of qualitative methods: How were participants/settings accessed? Who was interviewed/observed? How often? For how long? What interview questions were asked? What was the purpose of any observation? Which policy documents/case notes were accessed? How were they assessed? How was collected data managed?
Representativeness
There are a number of commonly available, non-probability sampling approaches. Maximum variation sampling seeks representativeness of all aspects of the topic in terms of participants. Homogenous sampling consists of the selection of a group fitting specified criteria. Snowball samplinginvolves networking from one difficult-to-access type of participant to a wider range of participants. Finally, convenience sampling involves studying easily accessed individuals or groups. This last technique obviously presents its own ethical dilemmas of the “insider” type and is possibly the weakest form of sampling in terms of allowing conceptual generalisability.4,15,16,22,23Maximum variation is the ideal when a holistic overview of the phenomenon is sought; for instance, the question of how a particular hospital department operates may involve sampling in the wider organisation as well as within the individual department and among recipients of services.
Simply mentioning the sampling strategy in the methods section of a qualitative research paper is not sufficient. The key findings of the research need to be evaluated in reference to the diverse characteristics of the research subjects. Through constantly comparing the experiences and responses of the participants against each other, subtle but significant differences can be uncovered that can generate profound insights into the phenomena under study.19
Interpretative rigour
Interpretative rigour relates to as full as possible a demonstration of the data/evidence. In qualitative research, a commonly used concept is inter-rater reliability. This refers to using a type of researcher triangulation by which multiple researchers are involved in the analytical process. This is an attempt to increase the validity and reliability of the study19 through the provision of a more complex and nuanced understanding of the possible interpretations of the objects of the research.11 In contrast to the quantitative research paradigm, what is important in this process is not the level of consensus, but the opportunity for discussion among analysts to provide opportunities for developing further coding.19
A related technique is that of respondent validation, or member checking. This entails offering subjects interviewed the opportunity to view and amend their transcripts as a type of validity.12 However, this approach does have limitations due to the evolution over time of the positions and purposes of the researchers and participants, thereby potentially affecting interpretations and accounts. Respondent validation should be thought of as part of a process of reducing error, which involves the generation of further original data, which then requires interpretation.8
Other techniques that enhance interpretative rigour are the differing forms of triangulation: data (multiple evidentiary sources; ie, documents, interviews, survey data, observation), methods (multiple methods), and theory (multiple theoretical and conceptual frames applied to the research to enhance insights into phenomena). Using these forms of triangulation allows the development of a comprehensive understanding of the phenomena and can ameliorate the potential bias of simply using one method.4,5,8,11,16,22
In the interpretive process, accounts of “negative” or “deviant” cases are especially important. These are explanations pertaining to data or evidence that contradicts the researchers overall explanatory account of the phenomena.5
In sum, a clear description of what forms of analysis were used, the process and what were the major outcomes of the analytical process in terms of findings is needed to ensure quality for the author, and to enable an assessment to be made in terms of the analytical quality of the research by the reader.
Reflexivity and evaluative rigour
Reflexivity is where researchers openly acknowledge and address the influence that the relationship among the researchers, the research topic and subjects may have on the results.4,11,13 Fundamentally, reflexivity requires a demonstration by the researchers that they are aware of the sociocultural position they inhabit and how their value systems might affect the selection of the research problem, research design, collection and analysis of data.15 It also refers to an awareness by the researchers of the social setting of the research and of the wider social context in which it is placed.4
Evaluative rigour refers to ensuring that the ethical and political aspects of research are addressed. Typically, this refers to proper ethics approval from appropriate committees covering confidentiality, informed consent and steps to avoid possible adverse effects on the subjects. Importantly, where appropriate, relevant community leaders should be consulted in the design and conduct of the research.11 Researchers should revisit their actions and interactions within the research process to ensure as “accurate” as possible portrayal of the production of their findings.
Transferability
Conceptual generalisability and transferability refer to how well the study’s findings inform health care contexts that differ from that in which the original study was undertaken.4 For example, a review of data from qualitative studies was conducted on a wide variety of doctor–patient interactions about medication compliance.24 The authors examined barriers to patients taking prescribed medication as directed by their doctors and found that patients were often inclined to resist taking medicines, not because of problems with the patients, doctors or systems, but because patients were concerned about the medicines. This type of study allows for the construction and transfer of general policy on medicine-taking (through, for example, less emphasis on patient behaviour modification and more emphasis on production of safer medicines) and practice (suggesting, for instance, that doctors should assist lay evaluations through provision of more information, support, feedback and safe prescribing practices
Here is an approach that perhaps has more consideration for the many different types of qual research


The Open University, UK
m.hammersley@open.ac.uk MartynHammersley 0000002007 330Taylor & Francis 2007 Original Article 1743-727X (print)/1743-7288 (online) International Journal of Research & Method in Education 10.1080/17437270701614782 CWSE_A_261329.sgm Taylor and Francis
This article addresses the perennial issue of the criteria by which qualitative research should be evaluated. At the present time, there is a sharp conflict between demands for explicit criteria, for example in order to serve systematic reviewing and evidence-based practice, and arguments on the part 
of some qualitative researchers that such criteria are neither necessary nor desirable. At issue here,

in part, is what the term ‘criterion’ means, and what role criteria could play in the context of qualitative enquiry. Equally important, though, is the question of whether a single set of criteria is possible across qualitative research, given the fundamental areas of disagreement within it. These reflect 
divergent paradigms framed by value assumptions about what is and is not worth investigation. In 
addition, there are differences in methodological orientation: over what counts as rigorous enquiry, 
realism versus constructionism, and whether the goal of research is to produce knowledge or to serve 
other goals.

Friday, 27 July 2012

Going Multiple


Triangulation is one of the core concepts in qualitative research, supporting the production of rigourous, trustworthy studies...there are many ways to do it..it's all about multiple perspectives

-use multiple theories to analyse data to mediate against using only your pet concepts
-use multiple coders, chosen because of different views to add richness to your analysis
-use multiple sources of data to look at a phenomenon from different angles

This week i have helped students design 2 new studies,each taking advantage of these methods

One involves looking at ethical dilemnas clinicians face when having to use the DSM in everyday practice. We are looking at how different professions deal with this, including family therapists, clinical psychologists and psychiatrists. We will have 3 data sources; a survey of a 100 people, in depth interviews with 20 and 3 detailed case studies of work with clients. We will also form a coding committee of representatives from these professions to meet 4 times during the coding process.

The other involved a study of the experience of families admitted to a kids  hospital with a child with anorexia, an admission for those families struggling with standard outpatient family therapy. Our info sources are family interviews, audio-diaries to catch significant moments and videos of family meal sessions, all at three time point before, during and after admissions

These two designs take advantage of multiple sources of data and multiple perspectives and mean that our conclusions will be more robust....

Monday, 18 June 2012

Validity and Reliability for Qualitative Researchers



If you have had any experience with quantitative research you will know that there are strict criteria for establishing the reliability and validity of studies. Depending on your epistemology, however, this can also be the case for qualitative research.

 Guba and Lincoln put forward four criteria for determining the trustworthiness of qual research, as you can see in the table below

Quantitative Research
Qualitative Research
internal validity
credibility
external validity
transferability
reliability
dependability
objectivity
confirmability

What do these terms mean

Credibility means how much do the findings mirror what the participants actually meant. This can be achieved by respondent validation or member-checking.

    Transferability means how generalisable are the findings to another setting. This is a job done by the researcher in quant studies but in qual studies the researcher must simply describe the study context well and onus is then on the reader

    Dependability means would you get the same results if the study was done again or by someone else. This can be achieved by cross-checking codes with another researcher or collaborative coding with a group.

    Confirmability means can the findings be corroborated by others. It is important to describe how your data was analysed in detail and leave an audit trail that links your results with your interview transcripts 
     
    Want to read more on this? Here's a great article


Wednesday, 30 May 2012

Taking the Tabula Rasa Out of Grounded Theory



Grounded theory is probably the most commonly used method for analysis in qual research but it is based on the assumption that the researcher really can get out of the way, analyse the data clearly, as a theory emerges from the ashes..there are obvious problems here of bias, ones that can are not adequately catered for simply by memoing (bracketing) your own biases throughout the coding process

I highly reccommend this article if you have grounded theory in mind...
 Adele Clarke (2005). Situational Analysis—Grounded Theory After the Postmodern Turn. Thousand Oaks, California: Sage xli + 363 pages, ISBN: 0-7619-3056-6, $ 87,70

She recommends using a series of maps to be more transparent about all the myriad of influences around you

In Situational Maps all actors (individual or collective) and actants (elements, bodies, discourses) are mapped and then their relationships to each other analysed.
Social worlds/arenas maps keep hold of different "universes of discourse" (as defined by STRAUSS in 1978), i.e., they map collectives and "sites of action" 
Positional Maps are designed to grasp the sites of the stated and, more importantly, the non-stated positions taken in the field. [11]


Great review of her paper LINK

Making a Mess with Situational Analysis?
Tom Mathar
Review Essay:
Adele Clarke (2005). Situational Analysis—Grounded Theory After the Postmodern Turn. Thousand Oaks, California: Sage xli + 363 pages, ISBN: 0-7619-3056-6, $ 87,70
Abstract: Adele CLARKE, a student of grounded theory co-founder Anselm STRAUSS, uses situational analysis to develop both a methodology and a method which is able to represent the field's messiness, i.e., its heterogeneous and complex character. Grounded theory, CLARKE's starting point, is stuck in a modernist world-view, particularly by looking too much for a pure and oversimplified "basic social process". In order to make grounded theory post-modern, CLARKE considers discourses that are beyond pragmatism, e.g., those initiated by FOUCAULT, LATOUR, HARAWAY. This review essay argues that even though there remain some uncertainties in engaging in this epistemological hybrid, situational analysis provides a very good instrument for researchers to come into their material more deeply and, therefore, is a convincing tool for practice-oriented social science working with qualitative methods.

Wednesday, 23 May 2012

The Benefits of Collaborative Coding




We just had a great collaborative coding session in our fortnightly meeting, a process that I highly recommend..basically it involves coding in a group, all have a transcript, the researcher reads chunks and the group discuss coding and try to reach consensus

We looked at a transcript from a study about how women adapt to breast cancer risk.

Its ideal if there is some different perspectives in the group, even people from outside Psychology, who can offer alternatives and contribute towards a real debate..today we had lots of debate, particularly wrestling with codes that could be seen as reading too much into the data and those that might have seen denial of risk as pathology rather than self-protection

You'd be surprised how this can add richness to your analysis, spark new ideas, reveal your biases, develop hypotheses for future interviews and more..

It is also , of course, another form of triangulation, adding trustworthiness and supporting a host of measures you might include in your study for this purpose


Friday, 18 May 2012

Oldy But Goody: The Lancet Knights Qualitative Research

Stumbled on this today, over a decade old but an article in the Lancet about qualitative research....woooohooooo! We are now officially real!

The Lancet, Volume 358, Issue 9280, Pages 483 - 488, 11 August 2001
Qualitative research: standards, challenges, and guidelines Kirsti Malterud 

Qualitative research methods could help us to improve our understanding of medicine. Rather than thinking of qualitative and quantitative strategies as incompatible, they should be seen as complementary. Although procedures for textual interpretation differ from those of statistical analysis, because of the different type of data used and questions to be answered, the underlying principles are much the same. In this article I propose relevance, validity, and reflexivity as overall standards for qualitative inquiry. I will discuss the specific challenges in relation to reflexivity, transferability, and shared assumptions of interpretation, which are met by medical researchers who do this type of research, and I will propose guidelines for qualitative inquiry.