“Do adults with aphasia who participate in a computer-assist…

“Do adults with aphasia who participate in a computer-assisted language therapy program show greater improvements in vocabulary skills compared to those receiving standard language therapy?” How many groups and what are they? IV =  DV =  What would you expect? Which statistical test would you use to explore the difference between groups?

“Does the mean voice quality rating of individuals with voca…

“Does the mean voice quality rating of individuals with vocal nodules significantly change following vocal hygiene training compared to their initial voice quality rating?” How many groups and what are they? IV =  DV =  What would you expect? Which statistical test would you use to explore the difference between groups?  

Dr. Johnson is researching a new intervention for stutterers…

Dr. Johnson is researching a new intervention for stutterers. He has two groups of stutterers – one receives the new intervention, and one participates in “business as usual” treatment. He wants to determine if the participants receiving the new intervention have fewer disfluencies per minute than those in the business-as-usual group. What statistical test is Dr. Johnson most likely to use?