Experimental Design Quiz

What type of experimental design uses two different groups of participants, where one group receives treatment and the other does not?

• Repeated measures design

• Independent samples design

• Control group design

• Variable measures design

In an independent samples design, what is the main advantage of using different groups for each condition?

• It allows the same materials to be used more than once.

• It eliminates the problems of participant variability.

• It helps in memorizing under normal circumstances.

• It reduces the practice effect.

What is a key method used to reduce order effects in a repeated measures design?

• Using a standardized briefing

• Counterbalancing the order of conditions

• Conducting the experiment in a quiet environment

• Using control groups

Which of the following is NOT a recommended practice when conducting experiments according to the text?

• Using standardized instructions

• Conducting experiments during lunchtime

• Controlling the physical environment

• Giving a standardized briefing to participants

What is the primary characteristic of the sampling technique used in the described experiment?

• Random sampling from a large population

• Convenience sampling from second-year Economics classes

• Stratified sampling based on age and gender

• Systematic sampling every nth individual

How were participants allocated to one of the two conditions in the experiment?

• Based on their age

• By a random draw

• According to their gender

• Based on their academic performance

What ethical consideration is emphasized for participants younger than 16 years in the study?

• Parental consent is required

• Participants must be briefed daily

• Participants can choose their experimental condition

• All participants must be from the same school

In the experiment described, what method was used to ensure participants understood the instructions?

• Repeating the instructions multiple times

• Conducting a pilot study

• Providing written instructions

• Using a control group for comparison

What was the independent variable in the sample exploration experiment?

• The age of the participants

• The size of the anchor value

• The number of participants

• The type of school the participants attended

What is the primary focus of the first paragraph in the "Comments on the sample" section?

• Identifying ethical standards

• Describing the sampling method and design

• Listing the characteristics of the sample

• Explaining the results of the study