Lecture 13

Question 1

Is the single case baseline study internally valid?

Answer 1

least internally valid

Question 2

Explain the single case baseline study. What was the anecdote provided in class?

Answer 2

we are gonna get a baseline estimate, then intervene and have a post test seeing the effects of our intervention.

1. Estimate a baseline level of DV
2. Manipulate variable(s) and observe changes in DV

Anecdote: A science-minded friend with a mysterious symptom § Stomach pains – where are they coming from???
§ Every day, he tracked the level of his stomach pain
§ An unexpected pattern emerged…
§ Suspect: ???
§ Solution: Menthol in Ricola cough medicine

(This is a very weak design becuase so many things are changing in addition to just having the cough drops or not.)

Question 2

LOOK OVER AL OF THESE SLIDES (SLIDES 12) IT IS MAINLY REVIEW OF THE TEXTBOOK