Reversal/Alternating

Question 1

Reversal Design

Answer 1

ABAB
BAB
Most straightforward and most powerful within-subject design in demonstrating a functional relation.

Question 2

Variations of Reversals

Answer 2

Repeated Reversals (ABABAB) 
BAB Design 
Multiple Treatment Reversal Design (ABCACBC)
NCR Reversal Design
DRO Reversal Technique

Question 3

Advantages of Reversal

Answer 3

Clearly demonstrate a functional relation

Quantifies the bx change over baseline responding

Question 4

Disadvantages of Reversal

Answer 4

Irreversibility

Social, educational, ethical concerns

Question 5

Alternating Treatment Design

Answer 5

SCAMMM
Successive
Concurrent
Alternating
Multi element
Multiple schedule 
Multi element baseline

Question 6

Alternating Treatment Design

Answer 6

Rapid alternation of 2 or more distinct treatments (IV) while effects on bx are measured (DV)

Question 7

Treatments an be altered.

Answer 7

1-Across daily sessions 1/day
2-Separate sessions within same day
3-Implemented each during a portion
within the same day

Question 8

3 components of Steady State Strategy

Answer 8

Prediction of future levels of responding

Verification of previous predictions

Replication of previous effects

Question 9

Advantages of Alt Treatment Design

Answer 9

1-Does not require withdrawal
2-speed of comparison
3-minimizes Irreversibility
4-minimizes sequence effects
5-can be used with unstable data
6-access generalization 
7-intervention can begin immediately

Question 10

Disadvantages of Alt Treat Design

Answer 10

1-multiple treatment interference
2-unnatural nature of alternating             
    treatments 
3-limited capacity (2 or more/max of 4)
4-selection of treatments