This threat to internal validity refers to changes in participants that occur over time during an

experiment and may include tiredness or boredom.

A) selection B) testing C) history D) maturation


D

Psychology

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Even though the _______ are not law, courts have granted them "great deference."

a. Amendments b. APA Principles c. Uniform Guidelines d. Standards and Practice Guidelines

Psychology

The type of interactions in which a parent and child focus exclusively on each other is called

A) object-oriented. B) rhesus-type-B-oriented. C) affectivity-oriented. D) social interaction.

Psychology

Which statement is true?

A. Monozygotic twins have higher concordance for antisocial behavior. B. Dizygotic twins have higher concordance for antisocial behavior. C. Monozygotic and dizygotic twins do not differ in their concordance rates. D. There is no relationship between antisocial behavior and genetics.

Psychology

What is the recommended daily dosage of folic acid for pregnant women, as issued by the U.S. Department of Health and Human Services?

A. 100 milligrams B. 200 milligrams C. 400 micrograms D. 200 micrograms

Psychology