Which one of the following statements best describes a quasi-experimental study?
a. Participants are randomly assigned to treatment and control groups.
b. Treatment and control interventions are administered to pre-existing groups.
c. Researchers examine children's behaviors in educational settings rather than in laboratories.
d. Researchers are less concerned about the validity and reliability of their measures than is true in experimental studies.
Question 2
Imagine that a researcher finds that, on average, students who weigh more are better athletes. Which one of the following is an appropriate conclusion from this information?
a. Parents should feed their children as much as possible.
b. The school cafeteria should decrease the fat content of the food it serves.
c. On average, students who eat more become stronger and more agile.
d. There is a correlation between weight and athletic performance.
The experimental approach used by Masui and Markert to identify cyclin and cyclin-dependent kinase (
Experimental manipulations of ponds and responses.
Model of a longitudinal study in which 983 students were surveyed in 1984 and then again in 1985, 19
A dose-response curve describes the relationship between the quantity of the chemical entering the ...
The Prison Study
Suppose that we have a sample space with five equally likely experimental outcomes: E1, E2, E3, ...