Chapter 10

Question 1

True Experiment

Answer 1

Scientist has complete control over all aspects

Question 2

Quasi Experiment

Answer 2

An experiment that does not meet the requirements of a true experiment.
Researcher has some but not all control.

Question 3

Factors

Answer 3

Independent variables of an experiment

Question 4

Level

Answer 4

The value of an independent variable

Question 5

Condition

Answer 5

A group or treatment in an experiment

Question 6

Treatment

Answer 6

Another word for the condition of an experiment

Question 7

Order effects

Answer 7

Change in a subjects behaviour based on the position in which a condition appears within an experiment.

Question 8

Sequence effects

Answer 8

Changes in a subject’s performance resulting from interactions among the conditions themselves.

Question 9

Counterbalancing

Answer 9

Controlling for order & sequence effects by arranging that the subjects experience the various conditions in different orders.

Question 10

Limitations of counterbalancing

Answer 10

• Can disguise the treatment mean
• adds extra source of variability within each treatment
• does not work with asymmetrical sequence effects

Question 11

Block randomization

Answer 11

Control procedure in which the order of conditions is randomized, but each condition is presented once before they are randomized.

Question 12

Reverse counterbalancing

Answer 12

method of control in which the conditions are presented in order the first time and then backwards the second time.

Question 13

Balanced Latin Square

Answer 13

Each subject experiences the order of the conditions differently.

Question 14

2 elements of a good experimental design

Answer 14

1) existence of a control group/control condition

2) random allocation of subjects to groups