FRHD 3070 Lecture 12: Week 12 – Quasi_experimental Designs
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Department
Family Relations and Human Development
Course Code
FRHD 3070
Professor
Hendry

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1. Week 12 – Quasi-Experimental Designs
Program Evaluation
-Needs assessment:
oAre there problems that need to be addressed in a target population?
-Program Theory Assessment:
oHow will the problems be addressed? Will the proposed program address the
needs appropriately?
-Process Evaluation:
oIs the program addressing the needs appropriately? Is it being implemented
appropriately?
-Outcome Evaluation:
oAre the intended outcomes of the program being realized?
-Efficiency Assessment:
oIs the cost of the program worth the outcomes?
Quasi-Experimental Designs
-Used when the control of true experiments cannot be achieved
-Lower internal validity than true experiments
-Use only when true experimentation is not possible
-One-group posttest only design
oCompare the responses of a number of individuals exposed to the same event
-One-Group Pretest-Posttest Design
oAdd a baseline measure to provide a basis for comparison
-Threats to internal validity
oHistory effects
oMaturation effects
oTesting effects
oInstrument decay
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Description
1. Week 12 QuasiExperimental Designs Program Evaluation Needs assessment: o Are there problems that need to be addressed in a target population? Program Theory Assessment: o How will the problems be addressed? Will the proposed program address the needs appropriately? Process Evaluation: o Is the program addressing the needs appropriately? Is it being implemented appropriately? Outcome Evaluation: o Are the intended outcomes of the program being realized? Efficiency Assessment: o Is the cost of the program worth the outcomes? QuasiExperimental Designs Used when the control of true experiments cannot be achieved Lower internal validity than true experiments Use only when true experimentation is not possible Onegroup posttest only design o Compare the responses of a number of individuals exposed to the same event OneGroup PretestPosttest Design o Add a baseline measure to provide a basis for comparison Threats to internal validity o History effects o Maturation effects o Testing effects o Instrument decay
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