Select the correct answer.
sandy takes a day off once every 4 days, and morgan takes a day off once every 10 days. today, both of them have taken the day off. how many
days will it be until they have their next day off together?
oa 4 days
b. 10 days
c. 20 days
d. 40 days
undoing
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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