Experimental Design Quiz

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

• Requires a 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 involved in both the experimental and control groups.

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

• Each participant is allocated based on their preferences.

• Each participant is involved in multiple groups simultaneously.

Which of the following is a limitation of the "within subjects" experimental design?

• Requires a relatively smaller number of participants.

• Strict control of participant variables (including known and unknown characteristics) as same participants are in all conditions.

• Pre-testing on key variables is not often required.

• Strict control of participant variables (including known and unknown characteristics) as same participants are in all conditions, including random allocation to conditions.

What is a common issue with participant attrition in "between subjects" design?

• It is more common than in repeated measures.

• It is less common than in repeated measures.

• It requires more time to complete.

• It affects the control of participant variables.

What is a key characteristic of "within subjects" design regarding participant involvement?

• Participants are only in one group.

• Participants are in all conditions of the experiment.

• Participants are randomly allocated to one condition.

• Participants are involved based on their preferences.

Which experimental design requires a larger sample size to ensure the spread of participant variables?

• Between subjects

• Within subjects

• Both designs

• Neither design

What is a benefit of random allocation in "between subjects" design?

• It reduces the need for a large sample size.

• It avoids time-consuming participant matching on key variables.

• It eliminates the influence of unwanted variables.

• It requires participants to be in all conditions.

What is a limitation of "within subjects" design regarding participant variables?

• It requires a larger number of participants.

• It has less control over participant variables.

• It requires strict control of participant variables as same participants are in all conditions.

• It eliminates the influence of unwanted variables.

Which 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 designs

• Neither design

Which design involves participants in all conditions of the experiment?

• Between subjects

• Within subjects

• Both designs

• Neither design