Feedback research evidence

Research evidence. The power of feedback is evident in the famous Hawthorne studies. Ask any safety manager, industrial consultant, or applied psychologist whether they have heard of the "Hawthorne Effect," and they probably will say, "yes." They might not be able to describe any details of the studies that occurred between 1927 and 1932 at the Western Electric plant in the Hawthorne community near Chicago that led to the classic Hawthorne Effect. Most, however, will be able to paraphrase the infamous finding from these studies that the hourly output rates of the employees studied increased whenever an obvious environmental change occurred in the work sethng. 

Evidence has accumulated from several research groups indicating that PEPC activity in illuminated leaves is about two- to threefold greater than that from darkened plants when assayed at suboptimal, but physiological levels of PEP and pH (19-25). In parallel with these light-induced changes in catalytic activity, the light-form enzyme is less sensitive to feedback inhibition by malate. 

The first student group was taught with no use of CRS, while the other three groups ineluded a leeture where a different CRS-based teaehing approaeh was used to teach the different definitions of bearing capacity/pressure. Further details of the different methods used are provided in section 4.3. Although the number of students and time of delivery was different for each of the cohorts, the course contents, mode and pace of delivery remained unaffected. Evidence presented in section 4.4 as well as student feedback suggests that these differences did not affect the outcomes of this research. 

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