Single Subject Design

Agenda Finish Group Analysis Article Review Survey Issues Introduction to Single Subject

Types Longitudinal of Survey Studies Trend Changes over time e.g., gallop poll Cohort Common defining characteristics e.g., 3rd grade students in 2007, may or may not be the same group in the 5th grade in 2009 Panel Same people over time LBSI students at practicum, student teaching, 1 year after first job

Devising your own Survey is Tricky! Clear terminology and wording Points to the studies questions Eliminate vague questions Anchor ratings Pilot your instrument

REPLICATION: The “heart” of Single Subject Design No Water Water 2ml X 2 Water 2ml X 2

Functional Relationships????

Establishing Cause and Effect Single subject design is can establish cause and effect It does this by demonstrating that repeated applications of interventions, under controlled conditions, allows us to make an inference about the connection between the independent variable and the dependent variable Different patterns and types of designs help us establish the “functional relationship”

Baseline Terminology and Comprehension What is it? Why is it important? What do we need to know? Baseline Predictive Function Trend Decreasing Baseline Increasing Baseline How do I compute baseline stability and what is it?

Explain the Design AB Design & Changing Criteria Reversal Design Alternating Treatments Design Multiple Baseline Define/Purpose Limitations and Strengths Graph and explain an example use based on a hypothetical experiment