TOEFL - Writing Mock Tests

Choose the option that best completes the sentence. "The results of the study ______ the hypothesis that sleep deprivation significantly impairs cognitive performance."

Choose the best word to replace the underlined portion: "The author's argument was weak because it was based on a sample that was far from being representative of the population."

Choose the correct preposition to complete the sentence. "The results of the study are consistent ______ the hypothesis proposed by Smith et al. (2019)."

Choose the word that best completes the sentence. "The researcher used ______ reasoning to develop a hypothesis from a set of specific observations."

Insert the following sentence into the paragraph. Where would it best fit? "This methodological limitation has important implications for interpreting the results." Paragraph: (1) The study employed a self-report survey to measure behavioral outcomes. (2) Self-report measures are susceptible to social desirability bias, wherein participants may respond in ways they believe are socially acceptable rather than honestly. (3) Furthermore, the cross-sectional design prevents any determination of causality.

Choose the option that correctly uses a comma before a coordinating conjunction.

Which sentence best demonstrates appropriate use of citation signal phrases in an academic paper?

Choose the best option to complete the sentence with the correct relative pronoun: "The variable ______ most strongly predicted the outcome was not the one the researchers originally hypothesized."