Question 9 a 32 ft ladder leans against a building so that the top of the ladder touches the building at a point 23 ft above the ground. to the nearest tenth of a foot, how far from the bottom of the building is the bottom of the ladder? 30.1 ft 22.2 ft 39.4 ft 27.5 ft

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