When giving his speech, nick makes a point of having his facial expressions mirror what he is saying. for example, he smiles when saying something funny and keeps a solemn expression when talking about something that is sad. what function are nick's facial expressions serving?

Read this example of social change in the american society and identify the agent that caused this change. in less than five years almost twenty-five percent of americans had access to the internet a . education b. population c . war and revolution d. science and technology

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.

Abrief, "first-step" presentation of a work to be completed is called a