Experimental Design Quiz

In a "between subjects" experimental design, how are participants allocated?

• Each participant is involved in both the experimental and control groups.

• Each participant is randomly allocated to either the experimental or control group and is in one group only.

• Each participant is involved in all conditions of the experiment.

• Each participant is allocated based on their preferences.

What is one advantage of a "between subjects" experimental design?

• Requires a relatively smaller number of participants.

• Strict control of participant variables through random allocation to all groups/conditions.

• Participants are involved in both experimental and control groups.

• Pre-testing on key variables is often required.

In a "within subjects" experimental design, how are participants involved?

• Each participant is randomly allocated to either the experimental or control group.

• Each participant is involved in both the experimental and control groups, i.e., all conditions of the experiment.

• Each participant is involved in only one condition of the experiment.

• Each participant is allocated based on their preferences.

What is a common limitation of both "between subjects" and "within subjects" experimental designs?

• Requires a relatively smaller number of participants

• Strict control of participant variables

• Need to ensure sample size is big enough

• Elimination of the influence of unwanted variables is not always possible

Which experimental design can usually be completed on one occasion, reducing the need to spread out the time period between different conditions?

• Between subjects

• Within subjects

• Both between and within subjects

• Neither between nor within subjects

Which experimental design requires a relatively smaller number of participants when compared with other experimental designs?

• Between subjects

• Within subjects

• Both between and within subjects

• Neither between nor within subjects

Which experimental design involves the elimination of order effects between conditions to control?

• Between subjects

• Within subjects

• Both between and within subjects

• Neither between nor within subjects

What does a mixed design combine features of?

• Between subjects only

• Within subjects only

• Both between and within subjects

• Neither between nor within subjects

Which of the following is an advantage of a mixed design?

• Requires more participants

• Results tend to be less precise

• Can assess potential differences between two or more separate groups

• Pre-testing on key variables is often required

What is one of the limitations of a mixed design?

• Requires fewer participants

• Results tend to be more precise and detailed

• As with between and within subjects design, depending on the specific design features

• Can assess potential differences between two or more separate groups