Answer: d. Neither the researchers nor the experimental subjects know whether the latter have been assigned to an experimental group or a control group.
Explanation:
A Double-blind design refers to a kind of experimental procedure aimed to reduce the possibility of any subjective biases on both the researchers and the participants. Mostly used in medical trials of drugs, double-blind experiments have participants randomly selected to be part of either the control or the experimental group. There´s a third party in charge of providing the random selection and encoding the information until the data collection is completed.
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The Quran gave the women of Islam more legal rights.
The Articles of Confederation were originally agreed on because the country was new and not many people know how to run a government. They were rejected because they didn't give congress enough power and congress would've eventually failed without the ability to tax states.
Answer:
the oldest human fossil remains found in australia date to around 40,000 years ago. nothing is known about the physical appearance of the first humans that entered the continent over 60,000 years ago
Explanation:
