Single-case research designs can be used with a.            A single participant b.            A group of participants c.             Both A and B d.            Multiple groups e.            Single...

Single-case research designs can be used with

a.            A single participant

b.            A group of participants

c.             Both A and B

d.            Multiple groups

e.            Single treatment

For each of the following design briefs, identify

a.            The type of quasi-experimental design used

b.            The potential threat to internal validity that might exist in concluding that the treatment produced the observed effect