If a group of potential participants is tested so those scoring poorly can be selected for participation in a program to raise test scores, the selected group may show higher scores after engaging in the program.
There would be a threat to internal validity here. It would be
a. selection.
b. maturation.
c. statistical regression.
d. history.
Question 2
If research participants are assessed with a particular questionnaire early in a study, but the researchers change the questions for later assessment so participants can't simply repeat answers,
what potential thread to internal validity would be at work here?
a. instrumentation.
b. testing.
c. selection.
d. history.
An Edmontosaurus bone that was excavated in Alaska and tested at Temple University.
This 11-month old girl demonstrates one of the abilites of a child of this age group - creating a to
Selected skeletal muscles and the Achilles tendon (anterior and posterior views).
ABO Blood Group
Control of the Membrane Potential
Selected Minerals Used for Pharmactherapy