Quiz 9

The process that creates a causal connection between two variables is

Causal mechanism

The common feature of before-and-after quasi-experimental designs is

Absence of a comparison group because all cases are exposed to the experimental group

The criterion of time order indicates that the variation in the independent variable came before the

Dependent variable

In ex post facto control group designs, the groups are

Designated after the treatment has occurred

Which of the following are important, but not necessary, to establishing a causal relationship?

Mechanism and context

A relationship that exists between two variables that is NOT due to variation in a third variable is

Nonspruious

Experiments are considered "quasi experimental" when

Subjects are not randomly assigned to experiment and control groups

Which of the following is true about control and experimental groups?

Subjects must be randomly sorted into the two groups

Association is a necessary criterion for establishing a causal effect.

True

The assessment of change in the dependent variable for both groups after the experimental condition has been applied is known as

The posttest