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Recognising the range of questions and methodological approaches in
HPSR
Lucy Gilson University of Cape Town and London
School of Hygiene and Tropical Medicine
Professor Lucy Gilson, 14 Dec 2011
HPSR
• The terrain• The diversity• Developing the field• Funding development of the field
Professor Lucy Gilson, 14 Dec 2011
Professor Lucy Gilson, 14 Dec 2011
THE TERRAIN
Professor Lucy Gilson, 14 Dec 2011
HPSR seeks to understand
• what health systems are & how they function• what needs to be done to strengthen them• how to influence policy agendas on health
system development• how to develop and implement policies in
ways that strengthen health systems
Professor Lucy Gilson, 14 Dec 2011
Constraint Disease-programme issues Health system issues
Poorly motivated staff
Financial incentives to reward delivery of particular priority services
Institution of proper performance review systems Creating greater clarity of roles and expectations regarding performance of roles Review of salary structures and promotion procedures
Goes beyond assessing & strengthening dedicated disease/condition specific programmes
Travis et al. 2004Professor Lucy Gilson, 14 Dec 2011
Why include health policy focus?
• Health policies are deliberate actions to strengthen health systems
• Policies become effective– if there is enough political support AND– if they take root within health systems
• Important to understand – the politics of influencing policy agendas– the organizational dynamics of health systems
Professor Lucy Gilson, 14 Dec 2011
Health policy
• Not just an output of decision making but rather the entire process of decision-making
• Encompasses the– formal documents, guidelines and rules– the decision-making practices of the full range of
policy actors• that translate the documents into policy-as-
experienced
• Analysis focuses on people, processes, power Professor Lucy Gilson, 14 Dec 2011
Health systems are dynamic & interconnected systems at whose heart are people
People
governance
Information
financing
service delivery
human resources
medicines &
technology
De Savigny & Adams, 2009
‘It is the multiple relationships and interactions among the building blocks ... that convert these blocks into a system’
Professor Lucy Gilson, 14 Dec 2011
Health Policy:
Content & Instruments
Actors, Power & Politics
Institutions, Interests & Ideas
Health Systems:
Hardware: Structure; Organisation; Technology; Resourcing
Software: Actors & Relationships; Values; Norms
Policy Change
&
Health System Development
Global & National forces
Scope of HPSR
Professor Lucy Gilson, 14 Dec 2011
THE DIVERSITY OF HPSR
Professor Lucy Gilson, 14 Dec 2011
Different perspectives
Epidemiology& Clinical Sciences
Policy & Practice
Social Sciences
HPSR
Professor Lucy Gilson, 14 Dec 2011
What are health systems?
Machine-like organisations which can be controlled from the top through rules and incentives
Complex social and political phenomena, constructed
through human action
Professor Lucy Gilson, 14 Dec 2011
What is the nature of the social reality being investigated?
Epidemiology/Clinical science: There are a set of facts to be gathered (one reality)
Social science: Reality is
constructed by actors drawing
on their ‘contexts’ (different
parallel realities)
Positivism Relativism
Professor Lucy Gilson, 14 Dec 2011
Purposes of research & related questions
• Normative/evaluative
• Exploratory/ explanatory
• What interventions work best?
• What works for whom under what circumstances?
• What are the social processes, including power relations, influencing actors’ understandings and experiences, and shaping impacts of interventions?
Professor Lucy Gilson, 14 Dec 2011
Knowledge paradigm
-------------------------------------------------------------------------Positivism Critical Realism Relativism (interpretivism /
social constructionism)
Types of questions addressed
Is the policy or intervention effective/cost-effective?
What works for whom under which conditions?
What are the social processes, including power relations, influencing actors’ understandings and experiences?
Key research approaches and methods
Deductive: Hypothesis driven
Emphasis on measurement through surveys, data records & Statistical analysis; some qualitative data
Deductive and inductive : theory testing & building
Multiple data collection methods; Mixed method studies
Inductive: theory building & testing
Emphasis on qualitative data collection approaches & Interpretive analysis
Professor Lucy Gilson, 14 Dec 2011
Ensuring rigour
Positivist: Validity &
reliability of data &
analysis
Relativist: Trustworthi
ness of interpretive judgements
Professor Lucy Gilson, 14 Dec 2011
DEVELOPING THE FIELD
Professor Lucy Gilson, 14 Dec 2011
The value of combining perspectives
Assessing household level impacts of user fees
Survey data & statistical analysis: What is the impact of out of pocket payments on household poverty levels across countries?
Qualitative, longitudinal household case studies: How do out of pocket payments combine with other influences over health seeking behavior to impact on the dynamics of household poverty?
Professor Lucy Gilson, 14 Dec 2011
Balance in questions asked
• Past emphasis on normative/evaluative work and ‘generalizable’ answers
• More work on exploratory & explanatory questions considering socio-cultural-political constructions of health systems (not just health)
Sheikh et al. 2011
Professor Lucy Gilson, 14 Dec 2011
In HPSR
• Value the range of perspectives and questions• No hierarchy of method
Professor Lucy Gilson, 14 Dec 2011
Strengthening study design
1. Research focus identified from understanding of
– local context AND relevant literature AND relevant theory
2. Clear, answerable research questions3. Question-driven research strategy4. Approaches to ensuring research rigour that
are relevant to strategy chosen5. Apply ethical principles
Professor Lucy Gilson, 14 Dec 2011
From RQ to research strategy (Yin 2009)
Form of RQ Requires behavioural control of events?
Focus on contemporary events?
Research strategy
Who, what, where, how many, how much?
No Yes Survey
Who, what, where, how many, how much?
No Yes/no Archival analysis
How, why? Yes Yes ExperimentHow, why? No No HistoryHow, why? No Yes Case study
Professor Lucy Gilson, 14 Dec 2011
The value of mixed method studies
• Deliberately combine strategies to expand the scope of studies, and deepen insights e.g:– initial small-scale intensive study to develop
detailed understanding of a phenomenon, followed by larger-scale structured survey to generate more extensive understanding of the same phenomenon, using tool developed from the initial study.
•
Professor Lucy Gilson, 14 Dec 2011
Ensuring rigour in HPSR
• An active process of questioning and checking during the inquiry
• A constant process of conceptualizing and reconceptualizing
• Crafting, trustworthy interpretive judgements • Researcher reflexivity
Professor Lucy Gilson, 14 Dec 2011
Procedural steps in building trustworthiness
• Prolonged engagement• Use of theory• Case selection:
– Purposive selection to allow prior theory and initial assumptions to be tested or to examine ‘average’ or unusual experience
• Sampling– Of people, places, times etc, to include as many as possible of the factors that might
influence the behavior of those people central to the topic of focus– Gather views from wide range of respondents
• Multiple methods (case studies)• Triangulation • Negative case analysis• Peer debriefing and support• Respondent validation (Member checking)• Clear report of methods of data collection and analysis (Audit trail)
Professor Lucy Gilson, 14 Dec 2011
FUNDING HPSR DEVELOPMENT
Professor Lucy Gilson, 14 Dec 2011
Critical elements
• Long term, large-scale funding for research programmes– focused on particular contexts/systems & driven by
questions; combining empirical, methodological & conceptual work; linked to educational programmes
• Multi-disciplinary research teams, working collaboratively with other health system actors
• Opportunities for cross-national work and learning
Professor Lucy Gilson, 14 Dec 2011
Working across capacity dimensions
Professor Lucy Gilson, 14 Dec 2011
Thank youwww.heu-uct.org.za
Professor Lucy Gilson, 14 Dec 2011