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For pregnant teens in HS parenting programs, do attitudes, social norms, perceived control predict continuation in high school? . P: Pregnant teens,15-17, currently attending a teen parent high school I: Attitudes, perceived control, social norms and intention
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For pregnant teens in HS parenting programs, do attitudes, social norms, perceived control predict continuation in high school? P: Pregnant teens,15-17, currently attending a teen parent high school I: Attitudes, perceived control, social norms and intention O: Continuation in HS after birth of child
Theory of Planned Behavior Demographics
Theory: Developmental Decision-making Framework • Cognitive & psychosocial development impact the decisions adolescents make • Adolescents are making decisions during a time of physiologic and cognitive changes • Environment influences the diversity of options she perceives
Literature review • What is its purpose? • What do we know? • Where are the gaps? • Developmental perspective • Education for pregnant teens
Research Design • Qualitative Questionnaire Development • Prospective, Descriptive Correlational • 7 sites (urban, rural, ethnic mix) • Convenience sample: 65 pregnant teens • Administered a written questionnaire between 20-32 weeks • Measured school attendance from 4-6 weeks postpartum
IV and DV Variables • Independent variables: Demographics Attitude, social norms, perceived control, intention • Dependent variable: Continuation in school: # of days from 4- 6 weeks
Participants: 65 Pregnant Adolescents in Teen Parent Programs Means: age: 16.12, GPA: 2.04, age/grade lag: .17, Grade: 10.8, FOB/MOB age difference: 3.17 year Percentage: AA (13%), Hispanic (42%), Caucasian (45%). Refusal rate: 2% Attrition: 6% (fetal demise, diagnosis of CA) 7 Sites: Relationship of demographics to school attendance: site, ethnicity, SES, age, grade, GPA P values: .13 - .95 Was I happy?
Inclusion/Exclusion Criteria: • In a teen parent HS program • 1st baby • Aged 15-18 • Going to keep baby • Speaks and reads English • Won’t graduate in next 6 months
Psychometrics: Development of Questionnaire: Validity • 48 adolescent mothers: 32 in school, 16 had dropped out • Themes developed • Feedback from participants on questions • Face validity: “experts” • Content validity: Used TPB constructs based on interviews written mothers
Questionnaire Reliability • 72 items on questionnaire • Likert scale: evenly spaced • Response set bias: Some positive, some negative; Took 15-20 minutes to complete • Test-Retest: Okay • 4 practice questions related to eating at McDonald’s • Paper and pencil • 6 questions on a page • 5th grade reading level
Questionnaire Reliability • Stability: test-retest • Homogeneity: Cronbach’s alpha: Perceived Control, Attitude, Social Norm, Intention subscales r = .50-.89 • Interrater reliability: 2 data collectors • No inconsistencies in data collection instruments
Internal Validity: Controlling It! • History? Took place over 9 months • Maturation? • Selection? convenience sample. Refusal rate: 2%; demographics the same among sites. • Mortality: 6% attrition for unforeseen reasons
External Validity: Who can I generalize to? • Refusal rates? 2% • Interactive effect of setting & IV? • Interaction of history & IV? • Hawthorne effect? • I can generalize to…? Who were the participants?
Statistical tests: Were the right ones used? • Demographics: 7 groups: ANOVA used.. not 42 T-Tests • Linear Regression: Not single order correlations • DV: school attendance: interval data: 1-21 days. • Variables entered into the computer in a step-wise manner based on the TPB: 1st: Demographics then TPB concepts
DV: C = School attendance: IV: A= Attitude: r = AC + ABC R2= ACbeta = ACIV: B= Social Norm r = BC+ABC beta= BC
Did the theory (model) work? How do you know?Why are the R2 and Adjusted R2 different (think sample size!)
Does the TBP help us understand school attendance? IVs: Demographics: Did not predict school attendance: P = .28 - .62 IVs: Attitude + Social Norm + Perceived Control + Intention Predicted DV: School Attendance Why is this a helpful thing to know?