Why don't measured variables lend themselves to true experiments? ...

[aabwk4]

Why don't measured variables lend themselves to true experiments?
 
  What will be an ideal response?

Question 2

What are the advantages of single-case research?
 
  What will be an ideal response?

[meltdown117]

Answer to Question 1

Measured variables involve pre-existing characteristics of participants. As such, you can't randomly assign participants to categories because you aren't manipulating the variable. Without random assignment, you don't have a true experiment.

Answer to Question 2

(a) Single-case research provides a wealth of detail, much more than for a group design, where in depth information would be too much to evaluate.
(b) Single-case research is also good for studying rare phenomena.
(c) Single-case research can be used for creating and testing research hypotheses.
(d) Single-case research is useful for studying clinical interventions on single people whose specific symptoms are unique.

[aabwk4]

Thank you

[meltdown117]

Happy to help you