Elementary schools in rural india are usually small, with a single teacher. the teachers often fail to show up for work. here is an idea for improving attendance: give the teacher a digital camera with a tamperproof time and date stamp and ask a student to take a photo of the teacher and class at the beginning and end of the day. offer the teacher better pay for good attendance, verified by the photos. will this work? researchers obtained permission to use 120 rural schools in rajasthan for an experiment to find out. explain why it would not be a good idea to offer better pay for good attendance to the teachers in all 120 schools and then to compare this year's attendance with last year's.

The answer is- No control Group

Explanation:

The researchers want to use 120 rural schools, however this will not work out because there are no control groups in the experiment.

A control group is the group that does not receive the offer. In this scenario, all the 120 rural schools receive the offer. The control group will help measure the attendance of teachers this school year which were not offered better pay. This will be used to determine how much the offer increased the attendance or the impact of the better pay on the attendance 0f teachers.

It will also not be good to compare this year's attendance to that of last year because the condition this year might be different when compared to last year, for instance, if this year is unusually cold compared to last year and some of the teachers caught cold and could not attend some of their classes then it is expected that there will be lower attendance when compared to last year and the better payment would not be the cause of change in attendance.

true because they can bargain

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