तपाईले विद्यालय तहका ,Jमा सामाजिक अध्ययन विषयका
अध्ययन गरेर जिवनमा के कस्ता परिवर्तन पाउन्न भयो वा सना,
ज सँग सम्बन्धित तपाईको बुझाइ तथा गतिबिधिमा परिवर्तन भयो
२०० शब्द्र नघटाई आफनो यतार्थपका धाश्या प्रक्षुत हीन ।

According to the federal regulations, which of the following studies 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. 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 feasibility study for implementing a year-round school program, focusing on economic issues such a facilities utilization and transportation costs. an analysis of aggregate data comparing statewide high school graduation rates provided by the state department of public instruction, using county tax information.

Awaiver of the requirement for documentation of informed consent may be granted when: the investigator has no convenient place to store signed consent forms separate from the research datathe only record linking the subject and the research is the consent document and the principal risk is a breach of confidentiality. potential subjects might find some of the research questions embarrassing, personal, or intrusivethe subjects are literate in their own language; however, they do not read, write, or speak english

During the period from 1865 to 1898 how did the political/economic elite contain the demands of farmers and laborers for economic justice