Hernandez Conducted a Study That Explored Whether Giving Children Recess

question 29

Multiple Choice

Hernandez conducted a study that explored whether giving children recess prior to testing helped their test performance. For one of the semesters, he sends half of his classes out for 10 minutes of recess prior to testing for the other half, he provides 10 minutes of free time after the test. Given the study was conducted in a school, students in the recess condition classes told students in the other classes that they were allowed to go to recess before the tests. This is an example of which of the following?

• A) History effect
• B) Instrumentation bias
• C) Treatment diffusion
• D) Placebo effect

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Definitions:

Decan-2-one

A ketone with the molecular formula C10H20O, characterized by a ten-carbon chain with a ketone group at the second carbon.

1-Bromoheptane

An organic compound consisting of a seven-carbon chain with a bromine atom attached to the first carbon.

Dieckman Cyclization

A chemical reaction used to form a ring by connecting the ends of a dicarbonyl compound using a base.

Acetoacetic Ester Synthesis

Acetoacetic ester synthesis is a method for creating carbon-carbon bonds, enabling the synthesis of ketones from acetoacetic ester through alkylation followed by decarboxylation.