Week_9_singlecase

Week_9_singlecase - ScWk 240 Research Method & Design Week...

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ScWk 240 Week 9 – Single Case Design & Introduction to Qualitative Research 1 ScWk 240 Week 9 Edward Cohen
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Single case designs Typical designs: AB and ABAB • AB (A=baseline, B=intervention or X ) – A: Baseline data are collected (several observations of the dependent variable) – B: Then intervention (Independent variable) is administered or started – Then several more observations of the DV • Single case designs use the single interrupted time series design – The time series design can be used for multiple cases (people) or for one case (person) O pre1 , O pre2 , O pre3 X O post1 , O post2 , O post3 A B 2 ScWk 240 Week 9 Edward Cohen
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Alternative single-case design: ABAB Withdrawal • ABAB—”Withdrawal” design (the treatment is withdrawn, then re-started) – A: Baseline data are collected (several observations) – B: Intervention is administered and outcome data are obtained – A: Intervention is removed and another round of baseline data are collected
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This note was uploaded on 09/08/2010 for the course SCWK 242 at San Jose State.

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Week_9_singlecase - ScWk 240 Research Method & Design Week...

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