Randomization in an experimental design assures
a. external validity of the findings.
b. the relevance of the hypothesis in question.
c. accurate observation of the dependent variable.
d. statistical equivalence of groups.
e. lack of pretest sensitivity.
Question 2
The fact that young children's articulation problems often disappear by themselves over time indicates why researchers must use ____in order to have internal validity.
a. control groups
b. informed consent
c. objective measurement
d. pre- and postmeasures
e. statistical analysis
Schematic of an automated external defibrillator (AED) attached to a patient.
External oblique
Internal and External Environment
Experimental Analysis of Metabolism
The experimental system that permits observation of rotation in the F1 component of F1F0 ATP (b)
Structures of the external eye