A Researcher Records the Number of Individual Instruments Identified by Students

question 2

Multiple Choice

A researcher records the number of individual instruments identified by students listening to a piece of classical music.He splits the data into quartiles and reports that students correctly identified 3 instruments at the 25th percentile,5 instruments at the 50th percentile,and 8 instruments at the 75th percentile.What are the IQR and SIQR for these data?

• A)the IQR is 3;the SIQR is 1.5
• B)the IQR is 2;the SIQR is 1.0
• C)the IQR is 5;the SIQR is 2.5
• D)There is not enough information to answer this question.

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Definitions:

Quantitative

Quantitative refers to a type of information or data that can be measured and expressed numerically, often used in research to quantify behaviors, opinions, or other defined variables.

Popular

Liked, admired, or enjoyed by many people or by a particular person or group.

Psychologists

Professionals who study cognitive, emotional, and social processes and behavior by observing, interpreting, and recording how individuals relate to one another and to their environments.

General Public

A term referring to the unorganized, broad group of people in society who do not belong to particular subgroups or professions; the average people.