Qualitative, quantitative and mixed methods in PCOR...Fitting mixed methods into your research....
Transcript of Qualitative, quantitative and mixed methods in PCOR...Fitting mixed methods into your research....
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Fitting mixed methods into your research
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Expert (etic) vs. Lay (emic) knowledge
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Theory Hypothesis Observation Confirmation
Hypothetico-deductive research
• Expert driven• Test relationships among known variables• Test relationships among variables that experts believe to be
important• Standardized, normed, validated instruments
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Hypothetico-deductive research
Precise Replicable Generalizable In CER, A is/is not better than B
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Hypothetico-deductive research
Surveys Chart reviews Administrative databases EMR, Penn Data Store PROMIS
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www.nihpromis.com
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HOWEVER…
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Patient experience may be very different from expert perspective
Patienthood is culturally shaped
• Meaning of illness• Beliefs about etiology• Beliefs about treatment• Beliefs about suffering• Beliefs about fate• Beliefs about accepting help• Therapy management group• Sick role• Context matters
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Illness experience may be very different from expert perspective
Biomedicine is a culture too• Scientific method• Beliefs about illness• Classification systems
– ICD– DSM
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Coming together
Experience
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Health behavior models Value expectancy theories Risk perception, self efficacy, behavioral intention Rational choice Limited consideration of:
• Cultural models• Social facts• Structural factors• Meaning• Historical trauma• Framing• Power imbalance
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Need for an expanded paradigm
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Observation Patterns Tentative hypothesis Theory
Inductive research
Inductive
Contextual factors
Emic
Provides depth
Ideal when little is known about a topic
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Designing a mixed methods PCOR studyClear and concise research questionWhose question is this?
• Patient engagement in the design and conduct of PCOR studies
design decisions• what kind of question are you trying to answer?• What kind of data do you need?
Sampling strategies • Purposive sampling
data collection• Engage with patient ideas• Many strategies
– Ethnography– Interviews– Focus groups– Cultural consensus analysis– Narrative analysis; thematic analysis, structure of the story- cultural cues
Develop typology– Ethnographic Decision Modeling– Content analysis– Life histories– Case studies
data management data analysis
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Designing a mixed methods PCOR study Clear and concise research question Whose question is this?
• Patient engagement in the design and conduct of PCOR studies design decisions
• what kind of question are you trying to answer?• What kind of data do you need?
Sampling strategies • Purposive sampling
data collection• Engage with patient ideas• Many strategies
– Ethnography– Interviews– Focus groups– Cultural consensus analysis– Narrative analysis; thematic analysis, structure of the story- cultural cues
Develop typology– Ethnographic Decision Modeling– Content analysis– Life histories– Case studies
data management data analysis
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Effectiveness implementation hybrid designs Type 1
• Primary aim: clinical effectiveness• Secondary aim: context for implementation
Type 2• Primary aim: effectiveness• Co-primary aim: feasibility etc of implementation strategy
Type 3• Primary aim: utility of an implementation strategy• Secondary aim: clinical outcomes
– Curran, Bauer, Mittman, Pyne, Stetler, Medical Care, 50(3): 217-226, 2012
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Medication Non-Adherence,
Poor Diet Adherence,
Disease Progression,
Access to Medication, Lack of Social Support
Car
egiv
ers C
liniciansPatients
,
,
Trouble Breathing,
Heart Issues, Medical Issues,
Swelling
Reasons for Hospital Admission
Question: What words describe the things that led to the patient’s (your) hospitalization this time?
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ADLs Social support
Instructions Management Financial Emotions
Cluster 1n=88
Low problem
Low problem
Low problem
Low problem
Low problem
Low problem
Cluster 2n=62
High problem
Low problem
Low problem
Moderate problem
High problem
High problem
Cluster 3n=35
High+ problem
High problem
High problem
High problem
High problem
High problem
Cluster 1: older, more likely to be male, retired, self-rated health is better, fewest prior admissions for HFCluster 2: younger, more likely to be female, more likely to be disabled, self-rated health is fairCluster 3: more likely to be unemployed, have poor self-rated health, most prior admissions for HF
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Where to turn? Institute for Biomedical Informatics
• http://upibi.org/– Bioinformatics core provides professional bioinformatics services
including data analysis and consultation– Clinical Research Informatics core provides computational services
to support the use of clinical data for biomedical research– IBI Idea Factory is a visual analytics facility designed to facilitate
collaboration and promote new ways of communicating and presenting scientific innovation
Biostatistics Analysis Center (BAC)• http://www.pennbac.org/
– Biostatistics analysis and programming– Data management– Collaboration on study design and proposal development
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Where to turn? Clinical Research Computing Unit (CRCU)
• http://www.cceb.med.upenn.edu/crcu– Clinical data management– Research technologies– Project operations and compliance– Research design, development and quality assurance
Mixed Methods Research Lab (MMRL)• https://www.med.upenn.edu/mmrl/
– Consultation regarding qualitative and mixed methods– Proposal development– Data collection– Data management– Data analysis
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Punchline Need a varied toolkit to answer PCOR questions What you know depends on how you know it There are resources at Penn that can be helpful
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Questions and Discussion