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.
The size of the antlers play a significant role in establishing the hierarchy in the group
The planar peptide group
Divorce Rates, Selected Countries In many countries divorce rates have risen in recent decades.
Comparison of group II self-splicing introns and the spliceosome
Selected Endocrine Disorders and Their Pharmacotherapy
Selected Drugs for Helminth and Protozoan Infections