What type of threat to internal validity is associated with practice effects?

What type of threat to internal validity is associated with practice effects?
 
  a) maturation
  b) regression
  c) testing
  d) instrumentation

---

In what situation would the researcher be adjacent to the environment, but NOT actively involved in the process being studied?
 
  a) a focus group
  b) participant observation
  c) direct observation
  d) an interview

---

Which section of a manuscript reviews the relevant research that has been done in this area?
 
  a) introduction
  b) methods
  c) abstract
  d) running header

---

What is one criticism of the AB single-subject design?
 
  a) too short
  b) may be unethical to not apply a facilitative treatment
  c) takes too much time and energy
  d) does not rely on graphical depiction

---

Alicia is conducting her first research project. In order for her to begin data collection, she must submit her research protocol to whom?
 
  a. Her professor
  b. The IRB
  c. The ethics board in her department
  d. All of the above