According to the federal regulations, which of the following studies meets the definition of research with human subjects? A feasibility study for implementing a year-round school... According to the federal regulations, which of the following studies meets the definition of research with human subjects? A feasibility study for implementing a year-round school program, focusing on economic issues such as facilities utilization and transportation costs. The collection of data, by a playground designer hired by the superintendent of schools, about the physical dimensions of school playgrounds, presence of fencing, and the kinds of equipment currently provided. A study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period. An analysis of aggregate data comparing statewide high school graduation rates provided by the State Department of Public Instruction, using county tax information.

Understand the Problem
The question is asking us to identify which of the provided study descriptions aligns with the federal regulations' definition of research involving human subjects. To answer this, we would need to understand the federal regulations related to research with human subjects and then evaluate each option based on those regulations.
Answer
The study involving twenty 4th grade classrooms meets the definition of research with human subjects.
A study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.
Answer for screen readers
A study of twenty 4th grade classrooms in which researchers ask the schools to systematically vary the time of day reading is taught, and collect weekly assessments of reading comprehension for each child over a three-month period.
More Information
Research with human subjects involves systematic investigation that includes research development, testing, and evaluation, and is designed to develop or contribute to generalized knowledge.
Tips
When determining if a study is considered research with human subjects, consider if the data collected can be linked back to specific individuals. If the data is anonymous and aggregated, it's less likely to be considered research with human subjects.
Sources
- Solved] what the correct answer to this According ... - studocu.com
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