week 4 b

Question 1

What is Single Subject Design?

Answer 1

• N of 1
• Require control groups and large # of homogenous subjects
• Allow Cause and effect

Question 2

What are some limiting factors for N of 1?

Answer 2

1. very time intensive

2. not feasible for clinicians

Question 3

Independent variable

Answer 3

Treatment (level = phases)

Question 4

Dependent Variable

Answer 4

Patient Response (Target Behavior)

Question 5

Why does N of 1 differ from case studies/series?

Answer 5

1. Repeat measurements

2. Design phases

Question 6

What are the phases?

Answer 6

1. Baseline
2. Length
3. Target Behavior

Question 7

What is the Baseline phase?

Answer 7

1. Evaluate for stability and Trend
2. Stable vs Unstable
3. Indicate change is occurring w/o intervention

Question 8

What is Length of Phases?

Answer 8

1. Can be flexible
2. Important to extend phase until stability is reached
3. min 3-4 data points for each phsse
4. Best to have equal phase/interval length
5. Can use summary assessments

Question 9

What is Target Behavior?

Answer 9

1. Dependent Variable
2. Patient focused and subjective measures
3. Quantitative and provide proof of reliability

Question 10

What is Single Subject AB design?

Answer 10

Advantage: can observe change b/w A + B
Disadvantage: Unsure i fB was due to some confounding or maturation effect; learned effect

Question 11

What is single subject ABA design?

Answer 11

Advantage: can determine if A truly caused B to occur since target behavior should return to baseline
Disadvantage: Behavior must be reversible: Ethical issues w/ withdrawal treatment