Realist Review: An Introduction - PRAM :: Participatory Research at ...
Realist Review: An Introduction - PRAM :: Participatory Research at ...
Realist Review: An Introduction - PRAM :: Participatory Research at ...
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<strong>Realist</strong> <strong>Review</strong>: <strong>An</strong> <strong>Introduction</strong><br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
CPHA 2011 Presenters:<br />
Justin Jagosh, Jon Salsberg, Pierre Pluye , <strong>An</strong>n C.<br />
Macaulay, Paula L. Bush<br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill (<strong>PRAM</strong>)<br />
Department of Family Medicine, McGill University, Montréal, Canada.<br />
© 2011 <strong>PRAM</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
About us:<br />
We are a research team, based <strong>at</strong> the McGill University Centre for <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong><br />
(<strong>PRAM</strong>) and have been conducting a large system<strong>at</strong>ic realist review of <strong>Particip<strong>at</strong>ory</strong><br />
<strong>Research</strong><br />
Our team:<br />
Knowledge-User Co-Applicants:<br />
� Sarena Seifer, Susan Law, David Clements, Marielle Gascon-Barré, David L. Mow<strong>at</strong>,<br />
Sylvie Stachenko, Sylvie Desjardins, and Ilde Lepore.<br />
Academic Co-Applicants and Trainees:<br />
� <strong>An</strong>n C. Macaulay, Pierre Pluye, Jon Salsberg, Justin Jagosh, Jim Henderson, Robbyn<br />
Seller, Erin Sirett, Paula L. Bush, Geoff Wong, Trish Greenhalgh, Margaret Cargo, Carol<br />
Herbert , Lawrence W. Green<br />
Acknowledgements:<br />
The review, and post-doctoral fellows Drs. Jagosh and Seller, were supported by a Canadian Institutes<br />
of Health <strong>Research</strong> KT-Synthesis Grant (# KRS-91805), funding from <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong><br />
McGill (<strong>PRAM</strong>), and the Department of Family Medicine, McGill University.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Workshop Objectives<br />
� To explain the logic and key ingredients of realist review:<br />
� Wh<strong>at</strong> is the underlying philosophy of realism?<br />
� Wh<strong>at</strong> does realist review purport to solve?<br />
� Key ingredients (Context-Mechanism-Outcomes configuring, Demi-Regularities and<br />
Middle-Range Theory)<br />
� To explore when and why realist review is useful;<br />
� To think about realist review using examples from the audience;<br />
� To address specific questions concerning your interest, past<br />
experience and future use of realist review.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
The underlying philosophy of realism:<br />
� Realism: a philosophical stance concerning the fallibility<br />
of knowledge<br />
Positivism Realism<br />
Constructivism<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
<strong>Realist</strong> Logic:<br />
“Wh<strong>at</strong> causes something to happen has nothing to do<br />
with the number of times we observe it happening”<br />
(Sayer, 2000 p. 14).<br />
Not: “does it work or not?”<br />
But r<strong>at</strong>her, “wh<strong>at</strong> works, for whom, and in wh<strong>at</strong><br />
circumstances?”<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Wh<strong>at</strong> does realist review solve?<br />
� Empirically-driven system<strong>at</strong>ic reviews (e.g. Cochrane or<br />
Campbell-style reviews) are more suitable for assessing<br />
‘simple’ interventions such as drug trials.<br />
� Empirically-driven system<strong>at</strong>ic reviews are less suitable for<br />
assessing complex social interventions...<br />
� ...this is because such reviews, which meta-analyse outcomes<br />
from multiple studies, have limited capacity in accounting for<br />
the effects of culture, community history, geo-political<br />
contexts, study design, program theory etc., which characterize<br />
complex social interventions<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
A <strong>Realist</strong> approach means synthesizing<br />
complexity of interventions...<br />
� “...to go beyond reportage and summary of existing st<strong>at</strong>es of affairs. The point after<br />
all is to support fresh thinking to revise policy and launch it in new circumstances”<br />
(Pawson, 2006 ,p. 74 * ) ;<br />
� ...from multiple forms of evidence: research findings, author reflections, and<br />
description of program processes and contexts.;<br />
� ...by using ‘abductive reasoning’ and ‘redaction’ to synthesize the evidence;<br />
� ...by assuming from the outset th<strong>at</strong> key answers to assessment questions are<br />
shrouded in a “black box” of programm<strong>at</strong>ic unknowns. The goals is to unpack this<br />
“black box” ;<br />
* Pawson (2006). Evidence-Based Policy: A realist perspective. Sage Public<strong>at</strong>ions: London.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
How do you do th<strong>at</strong>?<br />
� By identifying the basic logic (theory) behind programs under<br />
review;<br />
� By configuring the contextual fe<strong>at</strong>ures and mechanisms which<br />
determine outcomes -(known as C-M-O configuring);<br />
� By identifying semi-predictable p<strong>at</strong>terns or p<strong>at</strong>hways in the d<strong>at</strong>a<br />
(known as demi-regularities);<br />
� <strong>An</strong>d by using the CMO and demi-regularity synthesis to dispute,<br />
confirm, or refine the theory th<strong>at</strong> was originally identified.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Identifying the theory:<br />
For a realist synthesis of a single case, the underlying logic is understood as<br />
‘program theory.’ Every program has a theory, whether it is obvious or not.<br />
� For a realist review synthesizing many cases, the underlying theory is<br />
considered “Middle-range”:<br />
� Middle-Range Theory: not abstract to the point of being disconnected from<br />
the actual on-the-ground realities of program planning and implement<strong>at</strong>ion,<br />
yet, not specific to the point of being relevant to only one type of program.<br />
� Middle-Range Theory According to Merton * :<br />
“theory involves abstraction, of course, but it is close enough to<br />
observed d<strong>at</strong>a to be incorpor<strong>at</strong>ed in propositions th<strong>at</strong> permit empirical<br />
testing.”<br />
* Merton R. On Theoretical Sociology. Five Essays, Old and New. New York: The Free Press, 1967.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Context-Mechanism-Outcome Configuring:<br />
Context (C)<br />
Mechanism (M)<br />
Outcome (O)<br />
Figure 1: Basic components of realist causal explan<strong>at</strong>ion<br />
Pawson R, & Tilley N. 1997 [2003]. <strong>Realist</strong>ic Evalu<strong>at</strong>ion. Thousand Oaks, CA: Sage Public<strong>at</strong>ions.
Understanding Mechanisms:<br />
� Mechanism may be defined as:<br />
• “…underlying entities, processes, or structures which oper<strong>at</strong>e in<br />
particular contexts to gener<strong>at</strong>e outcomes of interest.”*<br />
� Mechanism:<br />
• Are usually hidden<br />
• Sensitive to vari<strong>at</strong>ions in context<br />
• Gener<strong>at</strong>e outcomes<br />
� For social interventions, mechanism typically refer to a cognitive process<br />
or wh<strong>at</strong> ‘turns on’ in the mind of program participants to make them want<br />
to particip<strong>at</strong>e in the program<br />
*Astbury B, Leeuw F. Unpacking Black Boxes: Mechanisms and Theory Building in Evalu<strong>at</strong>ion American Journal of<br />
Evalu<strong>at</strong>ion 2010 31(3):363-381<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
CMO c<strong>at</strong>egories are fluid, flexible and overlapping<br />
e.g., Outcome from one CMO can become context of another:<br />
Context 1 (C)<br />
timeline<br />
Mechanism 1 (M)<br />
Outcome 1 (O)<br />
Figure 1: Basic components of realist causal explan<strong>at</strong>ion<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
Context 2 (C)<br />
Mechanism 2 (M)<br />
Outcome 2 (O)<br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
From CMO to Demi-Regularities<br />
Demi-regularities = Wh<strong>at</strong> we expect to find in a semi-predictable<br />
manner:<br />
Demiregularity<br />
1<br />
Demiregularity<br />
2<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
Demiregularity<br />
3<br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Steps in the review process:<br />
from Pawson, R. (2006). Evidence-Based Policy: A realist perspective. Sage Public<strong>at</strong>ions:<br />
London.<br />
� Step one: identifying the review question<br />
� Step two: searching for primary studies<br />
• A search to track program theories<br />
• A search for primary studies<br />
� Step three: quality appraisal<br />
� Assessment of relevance<br />
� Assessment of rigour<br />
� Step four: extracting the d<strong>at</strong>a<br />
� <strong>An</strong>not<strong>at</strong>ion, Coll<strong>at</strong>ion, Reportage<br />
� Step five: synthesis<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Step five: possible goals of synthesis:<br />
� To question program theory integrity;<br />
� To adjudic<strong>at</strong>e between rival program theories;<br />
� To consider the same theory in compar<strong>at</strong>ive settings;<br />
� To compare official expect<strong>at</strong>ions with actual practice.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Our experience with realist review:<br />
� We conducted a review of the <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong><br />
liter<strong>at</strong>ure.<br />
� <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> = Co-governance of research by:<br />
academic researchers + end-users<br />
� End-users can be:<br />
� Community members<br />
� Health professionals<br />
� P<strong>at</strong>ients<br />
� <strong>An</strong>d others...<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Identific<strong>at</strong>ion, Selection, and Appraisal<br />
� 7167 cit<strong>at</strong>ions pulled from the liter<strong>at</strong>ure<br />
� 594 full-text articles retained using an<br />
identific<strong>at</strong>ion tool<br />
� 83 partnerships (sets of full-text articles) retained<br />
for appraisal using selection tool<br />
� 23 partnerships (276 articles) retained for<br />
synthesis<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Our synthesis was undertaken in seven iter<strong>at</strong>ive steps:<br />
� (1) Reading, annot<strong>at</strong>ing and extracting d<strong>at</strong>a from all retained public<strong>at</strong>ions and websites th<strong>at</strong><br />
pertain to PR processes and contexts;<br />
� (2) Identifying predictable p<strong>at</strong>terns of PR outcomes (‘demi-regularities’);<br />
� (3) Mapping partnership lifecycles and constructing (CMO) configur<strong>at</strong>ions th<strong>at</strong> explain PR<br />
outcomes in the chronology of partnership events;<br />
� (4) Sorting CMO configur<strong>at</strong>ions according to demi-regularities;<br />
� (5) refining CMO configur<strong>at</strong>ions, with particular <strong>at</strong>tention to identifying the mechanisms of<br />
particip<strong>at</strong>ion;<br />
� (6) confirming or modifying our understanding of the demi-regularities based on refined<br />
CMOs;<br />
� (7) and confirming the relevance of our identified middle-range theory as applied to these<br />
CMO configur<strong>at</strong>ions.<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Example map with CMO configuring:<br />
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
<strong>An</strong> example of CMO configuring<br />
� Context: most Lowell Cambodians are from rural Cambodia and thus had<br />
little educ<strong>at</strong>ional opportunity because of the closing of schools by the<br />
Khmer Rouge, resulting in very low literacy levels in their own language,<br />
Khmer, and in English. s. (K, p. 420, pa 1)<br />
� Mechanism: Coalition members [academic and community] valued and<br />
made use of the community coalition members’ knowledge about the efects<br />
of the collective historical trauma th<strong>at</strong> the community has endured<br />
� Outcome: With this understanding, the steering committee chose to<br />
conduct personal outreach, develop audiotapes to replace brochures, and<br />
made extensive use of weekly radio and cable TV show to reach their<br />
audience<br />
Tung T. Nguyen, Stephen J. McPhee, Ngoc Bui-Tong, Thien-Nhien Luong, Tuyet Ha-Iaconis, Thoa Nguyen,Ching Wong, Ky Q. Lai, Hy Lam.<br />
Community-Based <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> Increases Cervical Cancer Screening among Vietnamese-Americans. Journal of Health Care for the<br />
Poor and Underserved; 2006, 17: 31–54.
Insights on realist review...<br />
� There is no one way to conduct a realist review<br />
� Context, mechanism, and outcome c<strong>at</strong>egories are fluid,<br />
overlapping and closely interrel<strong>at</strong>ed;<br />
� Use review concepts heuristically (i.e., only if useful and<br />
relevant)<br />
� The logic of realism must be understood and adopted in<br />
order to carry out synthesis
Insights continued:<br />
� <strong>Realist</strong> <strong>Review</strong> is a qualit<strong>at</strong>ive-style approach, typically<br />
requiring small sample of cases for in-depth analysis;<br />
� “Hand-picking” and snowball sampling techniques are<br />
accepted sampling str<strong>at</strong>egies in realist review. The<br />
definitions of ‘quality appraisal’ and ‘system<strong>at</strong>ic<br />
procedure’ are used differently in realist review as<br />
compared to traditional empirical reviews.
Group Exercise #1<br />
Exercise 1:<br />
The following is a passage from a public<strong>at</strong>ion describing a particip<strong>at</strong>ory health intervention<br />
on asthma prevention in an inner city neighbourhood. Can you find a basis for (<strong>at</strong> least) one<br />
CMO configur<strong>at</strong>ion?<br />
...Some in the community felt th<strong>at</strong> we [the community advisory board (CAB)] would not be able to find<br />
families to particip<strong>at</strong>e in the study. There were also concerns [by the academic stakeholders] th<strong>at</strong><br />
conducting a complex clinical trial requiring structured outcome collection and adherence to study<br />
regimens in a community of families th<strong>at</strong> frequently moved and changed telephone numbers might not<br />
be possible. Academic researchers recognized th<strong>at</strong> inner-city families may have problems arranging<br />
required visits and may not always have a stable address or telephone, making scheduling and followup<br />
difficult. As a result they may be less compliant with complic<strong>at</strong>ed, taxing regimens or may not<br />
report side effects.<br />
...The participants were first provided a service and then offered the research part as an option. Gre<strong>at</strong><br />
care was taken not to pressure families in any way to join the study. We were pleased th<strong>at</strong> we were<br />
able to enrol a high percentage of eligible families and, despite a high r<strong>at</strong>e of changes in living<br />
arrangements, had such a high retention r<strong>at</strong>e. We believe this was due primarily to the trust cre<strong>at</strong>ed<br />
by the overall project and the people working for the project. The CAB helped ... develop successful<br />
recruiting and retention str<strong>at</strong>egies....The CAB defined appropri<strong>at</strong>e school partners and community<br />
organiz<strong>at</strong>ions for present<strong>at</strong>ions of the study....The CAB guided us to the development of a successful<br />
project ... As the study unfolded, we learned a gre<strong>at</strong> deal about ways to keep families engaged. When<br />
we encountered follow-up problems, possible courses of action were discussed with field staff and<br />
str<strong>at</strong>egies developed” (A, p. 164, para 8).
Group Exercise #2<br />
Exercise 2:<br />
Think about public health interventions th<strong>at</strong> you are familiar with and how would you plan<br />
a realist review of th<strong>at</strong> subject area?<br />
� How would you identify, select, and appraise the liter<strong>at</strong>ure?<br />
� Can you think of a possible ‘underlying middle-range theory’ pertaining<br />
to your subject area?<br />
� Wh<strong>at</strong> could be an hypothetical example of Context-Mechanism-<br />
Outcome configur<strong>at</strong>ion for your subject area?<br />
� Wh<strong>at</strong> questions arise for you as you think about applying realist<br />
methodology to your work?
Member of the <strong>An</strong>isnabe Kekendazone-NEAHR<br />
Network Environment for Aboriginal Health <strong>Research</strong><br />
Questions?<br />
<strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong> <strong>at</strong> McGill<br />
http://pram.mcgill.ca
Commentary:<br />
AC Macaulay, J Jagosh, R Seller, J Henderson, M Cargo, T Greenhalgh, G<br />
Wong, J Salsberg, LW Green, C Herbert, P Pluye. Benefits of <strong>Particip<strong>at</strong>ory</strong><br />
<strong>Research</strong>: A R<strong>at</strong>ionale For a <strong>Realist</strong> <strong>Review</strong>. Global Health Promotion. 18(2)<br />
June. 2011<br />
Protocol:<br />
J Jagosh, P Pluye, AC Macaulay, J Salsberg, J Henderson, E Sirett, PL Bush,<br />
R Seller, G Wong, T Greenhalgh, M Cargo, CP Herbert, SD Seifer, LW Green.<br />
Assessing the Outcomes of <strong>Particip<strong>at</strong>ory</strong> <strong>Research</strong>: Protocol for Identifying,<br />
Selecting and Appraising the Liter<strong>at</strong>ure for <strong>Realist</strong> <strong>Review</strong>. Implement<strong>at</strong>ion<br />
Science, 6(24). 2011<br />
http://pram.mcgill.ca Thank You!