In an Analysis of 65 Studies, in Which a Child

question 241

Multiple Choice

In an analysis of 65 studies, in which a child asked passersby for help in small towns and in large cities,

• A)about 72 percent of those approached in small town offered to help.
• B)only about 46 percent of those who were asked for help in the cities gave aid.
• C)only about one-third of the people were willing to help in the large cities, such as Boston and Philadelphia, with the least helpful city being New York.
• D)all of these results were found.

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Definitions:

Grignard Reaction

A chemical reaction in which an alkyl, vinyl, or aryl-magnesium halide (Grignard reagent) adds to a carbonyl group in an aldehyde or ketone.

Epoxide

A cyclic ether with a three-atom ring, consisting of an oxygen atom and two carbon atoms.

Aldehyde

Organic compounds characterized by the presence of a carbonyl group bonded to at least one hydrogen atom.

Ketone

An organic compound characterized by a carbonyl group bonded to two other carbon atoms; important in organic chemistry and biology.