On fan appreciation day, fans will be receiving free gifts. every person who passes through the turnstyle gets a team cap. every second person through will get a pennant. every sixth person gats a bat. every 25th person gets an autographed baseball. which person is the first one to get all the free gifts

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