6.Getting the teacher to show up Elementary schools in rural India areusually small, with a single teacher. The teachers often fail to show up forwork. Here is an idea for improving attendance: Offer the teacher betterpay for good attendance. Give the teacher a digital camera with a tamper-proof time and date stamp, and ask a student to take a photo of the teacherand class at the beginning and end of the day to verify attendance. Willthis work? Researchers obtained permission to use 120 rural schools inRajasthan for an experiment to find out. Explain why it is necessary toinclude a control group that doesn't get a financial incentive.4⁹

Control group and Experimental group: In an experiment, a group that gets a treatment is referred to as an experimental group or treatment group. The treatment is the variable you are examining, and this group consists of test subjects. On the other hand, the control group is referred to as the group that does not get the therapy. With the exception of the experimental condition, a good control group is nearly identical to the experimental group.The study's objective is to determine whether giving teachers the incentives and a digital camera may assist raise the likelihood that they will attend sessions/classes regularly. To make this work, there should be a control group in the experiment of same size from the sample of 120 rural schools. With the exception of the parameter under investigation, both groups should be identical. Utilizing a control group enables you to focus on the impact of the independent variable on the dependent variable. It may be presumed that the groups are similar since participants were randomly allocated to either the experimental group or the control group. In order to properly conduct this study, one set of teachers must receive the incentive and the camera (treatment group) while the other does not (control group). It is possible to assess the impact of this on the dependent variable, which is the likelihood that the instructor will attend classes frequently at the primary school.