The graph above shows Jack's mass over a five-month period. Based on the trend in the data, what do you predict will happen to Jack's mass the subsequent month? A. Jack's mass will increase.
B. Jack's mass will decrease.
C. It is important to predict because there is no trend in Jack's mass.
D. The next month's data will be Anomalous.

Agroup of student volunteers participates in a study designed to assess several behavioral interventions for improving output in a repetitive task. prior to the beginning of the study, all volunteers unknowingly observed, and their output is measured. at the beginning of the study, prior to any intervention, the volunteers perform the same task under the observation of a study administrator, and their overall output increases. which of the following terms describes this phenomenon? a. simpson's paradox b. hawthorne effect are d. novelty effect d. pygmalion effect e. observer-expectancy effect