12. Which of the following sentences contains formal language suitable for academic writing?

Answer: C

Explanation:

Many behavior modification studies employ a single-subject research design.

This sentence uses formal language appropriate for academic writing by clearly stating a widely accepted practice in research methodology.

A) I believe that prior reviews of the list support my hypothesis.

This option contains the phrase "I believe," which introduces a subjective perspective and makes the sentence less formal. Academic writing typically favors objective statements over personal beliefs.

B) The study participants comprised individuals aged 25 to 35 who reside in Kansas.

While this sentence is informative, the use of "comprised" can be seen as slightly informal in certain academic contexts. Additionally, the phrasing could be more concise to enhance its formality.

C) Many behavior modification studies employ a single-subject research design.

This statement is formal and precise, employing terminology that is standard in academic discourse. It conveys information clearly without personal bias, making it suitable for scholarly writing.

D) The results of the data analysis do not support the rejection of the null hypothesis.

This option is formal and includes specific terminology relevant to statistical analysis. However, it is more complex than necessary for conveying a straightforward idea, which may detract from its clarity in certain contexts.

Conclusion

Option C is the only choice that consistently utilizes formal language appropriate for academic writing while providing clear and objective information. The other options either introduce subjectivity, lack conciseness, or present complexity that may hinder clarity, thus falling short of the standards expected in scholarly communication.