A potential threat to the nonequivalent comparison-group design is the presence of a selection-history effect

a. True
b. False


Ans: a

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In her first trip to a zoo, 7-year-old Latisha notices that leopards have paws very similar in shape to her cat Snowball's paws. She also notices that leopards walk in much the same way that Snowball does. Latisha starts to wonder if perhaps leopards are cats. Latisha's thinking illustrates Piaget's idea that thought is characterized by:

a. egocentrism b. conservation c. use of schemes d. compartmentalization

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Classroom teachers can have scientists interact with students in their classroom via email, blogs, or by participating in these, which are live video broadcasts of an event sent over the Internet

What will be an ideal response?

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Reading in this text is defined as

a. a decoding process. b. the fluent decoding of text necessary for comprehension. c. the ability to get meaning from the printed page. d. the bringing of meaning to and getting meaning from the printed page.

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Which of the following is the term for the measures and processes used to measure or quantify a variable?

a. abstract b. operational definition c. reliability d. validity

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