hom 2
martha04
scenb.docxScenario B. A researcher is interested in studying whether a new app can help improve first graders’ reading skills. She recruits two first grade classes from a local elementary school: classroom 1 uses the app for 30 minutes each day and classroom 2 does not use the app. She compares their reading ability at the end of the school year.
1. What is the independent variable for Scenario B?
Group of answer choices
The app (whether or not the children use the app)
Reading skills
The parents
The grade the children are in
The amount of screentime (2 hours vs zero hours)
How many books parents read to the children
The children
2. How many levels are there for the independent variable in Scenario B?
Group of answer choices
Three
Two
One
Four
3. What is the dependent variable for Scenario B?
Group of answer choices
Reading skills
Social skills
How many books parents read to the children
The parents
The amount of screentime (2 hours vs zero hours)
The children
The app (whether or not the children use the app)
4. What is the confound for Scenario B (you may list more than one, but you must give at least one!).
5. How could the confound be fixed for Scenario B? Be sure to tell me what technique you are using (constancy, repeated measures, randomization, elimination, or balancing), as well as how you would apply that technique to this specific scenario, and how that would fix this confound.
