When crystal learned to play the piano as a child, her dad would reward her with candy as she practiced. sometimes he gave her candy after 6 minutes of practice, then after another 15 minutes, and then again after another 10 minutes. what type of reinforcement schedule is described here?

Aresearcher conducting behavioral research collects individually identifiable sensitive information about illicit drug use and other illegal behaviors by surveying college students. the data are stored on a laptop computer without encryption, and the laptop computer is stolen from the researcher’s car on the way home from work. this is an unanticipated problem that must be reported because the incident was (a) unexpected (i.e., the researchers did not anticipate the theft); (b) related to participation in the research; and (c) placed the subjects at a greater risk of psychological and social harm from the breach in confidentiality of the study data than was previously known or recognized. according to ohrp, this unanticipated problem must be reported to the irb in which timeframe? promptlywithin 48 hourswithin 24 hourswithin two weeks

Which statement is true of an executive agreement? apex

Helen is looking at a picture in which some of the border is missing. however, she is still able to understand the object is a picture of an american flag due to the perceptual principle of