A company makes a bracelet containing magnets that they claim improves balance and overall athletic performance. Researchers recruit volunteers for an experiment. The subjects will test the effectiveness of the bracelet by performing a variety of athletic challenges with and without the bracelet. Each subject will do each challenge 333 times: wearing the actual bracelet, wearing a placebo bracelet, and wearing no bracelet at all. The order will be randomized for each activity, subjects won't know which bracelet is which. Required:
Why did the researchers include the scenario where subjects wear no bracelet at all?

How did european immigrants of the late 1800s change american society

Read the sentence below, then answer the question that follows. penny learned tolerance after rahj explained the traditions of his family and their practice of indian traditions. the underlined word in the sentence above can best be defined as a. a fair and understanding view of those whose culture, race, or nationality differs from one’s own b. an understanding of a set of organized beliefs and practices that are often centered around one or more deities c. the linking of a group of people based on common characteristics such as culture, beliefs, or common history d. a classification based on inherited physical or biological traits

Acriterion for waiving informed consent is that, when appropriate, subjects are provided additional pertinent information after the study. in which of the following studies would it not be appropriate to provide subjects with information about missing elements of consent: a study in which researchers told students that they would be given a quiz after reading some study materials when the researchers did not intend to use a quiz, but were attempting to focus subjects’ attention on the material. a study in which subjects were told that they performed in the third quartile on an anagram task when in reality students were randomly assigned scores that were not related to their actual performance. a study in which subjects were assigned to study activities based on an undesirable or unflattering physical characteristic as assessed by members of the research team. a study involving decision-making games in which subjects were led to believe that they were interacting with another student in another room, but were actually interacting with a computer programmed to provide consistent responses to all subjects.