TOEFL Vocabulary - Do you know these words?

ScottsEnglish

There are vocabulary words which appear regularly on the TOEFL exam. Put the following 10 words in the correct sentences.

link
coordination
alternative
initial
validity
task
techniques
excluded
consent
proportion

1. All volunteers have to sign a _________________ form before the experiment.
2. The animals' ____________ involves reacting to different stimuli. 
3. Some students will be __________________ from participation because of their behavior.
4. Experiments are beginning to show a _________________ between a lack of sleep and memory problems.
5. Our _________________results were inconclusive so we will do the experiment again.
6. The person responsible for the ______________________ of the project will contact all the members.
7. The _________________ of foreigners in a country is always over-estimated by the ethnic majority.
8. Experts question the ____________________ of the study as too few subjects were included.
9. There is no ___________________ to statistics to prove the efficiency of a medicine.
10. Alchemy used different ___________________ to turn less valuable metals into gold.

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1. All volunteers have to sign a consent form before the experiment.
2. The animals' task involves reacting to different stimuli. 
3. Some students will be excluded from participation because of their behavior.
4. Experiments are beginning to show a link between a lack of sleep and memory problems.
5. Our initial results were inconclusive so we will do the experiment again.
6. The person responsible for the coordination of the project will contact all the members.
7. The proportion of foreigners in a country is always over-estimated by the ethnic majority.
8. Experts question the validity of the study as too few subjects were included.
9. There is no alternative to statistics to prove the efficiency of a medicine.
10. Alchemy used different techniques to turn less valuable metals into gold.

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