Designing and Implementing Mixed Method Research
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Designing and Implementing Mixed
Method Research
Kathryn Edin
Harvard University
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PROMISES I CAN KEEP
• Motivated by the failure of explanations flowing from the standard economic model– Why do poor women have children while
young and unmarried when they’ll face such an uphill battle to support them?
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• Focused ethnographic observations in 8 communities, all moderate to high in poverty
• N=162 qualitative study in one MSA
• Repeated in-depth interviews
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SitePhiladelphia County
0
10
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1960 1970 1980 1990 2000
% Non-MaritalBirths
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% below poverty0 - 1011 - 2121 - 3031 - 4040 - 100No Data
N
EW
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Figure 2 - White Non-Hispanic female-headed household poverty rate by census tract, Philadelphia, 2000
Pennsport
Kensington
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% below poverty0 - 1011 - 2121 - 3031 - 4040 - 100No Data
N
EW
S
Figure 1 - Hispanic female-headed household poverty rate by census tract, Philadelphia, 2000
West Kensington
East Camden
North Camden
South Camden
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% below poverty0 - 1011 - 2121 - 3031 - 4040 - 100No Data
N
EW
S
Figure 1 - Black female-headed household poverty rate by census tract, Philadelphia, 2000
South Camden
North Camden
Strawberry Mansion
North CentralEast Camden
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Younger Older
White 25-30 25-30
Puerto Rican 25-30 25-30
African American
25-30 25-30
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• Fieldwork– Edin moved to Camden to begin fieldwork– Kefalas began fieldwork in Kensington and Pennsport– Graduate students in West Kensington, Strawberry
Mansion, and North Central.
• Interviewing– Maximum Heterogeneity Method– Repeated In-Depth Semi-Structured Interviews
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Pennsport
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Kensington
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What was New?• Using census data to select neighborhood
contexts within a single metro area to study.
• Combining ethnographic and in-depth interview techniques within
neighborhoods.
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Qualitative Addition to Fragile Families
• Motivated by “discovery” of new family form– What are the couple dynamics that lead to stability
or breakup, and after breakup, to on going father involvement or disengagement?””
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• Stratified random survey subsample in three cities.
• Hospital recruitment, Interviews at – 2 months, 1,2, and 4 years– in-depth interviews with both the couple and
each individual parent
• Longitudinal in nature, timing of interviews complementary to FF.– birth, 1, 3, and 5 years
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• Multi-Disciplinary team from Sociology, Economics, and Psychology.
• Initial FF findings and other research on father involvement over time provided motivation for study.
• Questions of Interest– What forces pull non-marital couples who share a
birth together or push them apart?– What forces keep non-custodial fathers to engaged
with their children or push them to disengage?
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Site Selection
sites
ChicagoMichael Reese
25 couples
MilwaukeeSt. Mary’s25 couples
New YorkLutheran
25 Couples
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Design
• Roughly even numbers of African Americans, Caucasians, and Latinos
• Within each group, roughly two-thirds non-marital and one-third marital
• All relatively low-income
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What was New?• Stratified Random Subsample
• Couple-Level Data
• Longitudinal
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Moving to Opportunity
• Motivated by hypothesis about “neighborhood effects” – how do neighborhoods matter for the people who live in them?
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MTO Qualitative Study in Baltimore & Chicago (2003 – 2004)
• Unique features– Nested within a field experiment
– Stratified random sample represented all “program groups”
• Experimental group – used voucher to move to neighborhood < 10% poor
• Section 8 comparison group – used voucher anywhere• Control group – did not receive any change to housing
– Also stratified by household type
– Followed a survey which took place 4 – 7 years after random assignment.
– Focused on “puzzles” from the survey results
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Questions
• Why are there large mental health gains, as well as improvement in obesity for mothers in the experimental group, but no employment or earnings gains?
• Why were there no educational gains for children in the experimental group?
• Why do adolescent girls in the experimental group experience benefits in terms of mental health and risk behavior, while boys show no improvement or are at greater risk?
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Methodology
• In-depth interviews:– Adults (N=187)– Youth (14 – 19 years old) (N=129)– Teachers (Baltimore only) (N=41)
• Classroom observation:– (Baltimore only)– 80 classrooms (Math & English)
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What was New?• Survey findings motivated qualitative study &
affected methods & construction of interview guide
• Qualitative methods sought to capture “process” to go along with “outcome” in survey
• Using experimental design for qualitative analysis
• Nested within a field experiment - can be messy