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Two groups of people A and B. Social experiments. Control group. Surveys and statistics collection. Division into two types. Study of society and social technologies.
Sticky notes with school subjects icons on a chalkboard, back to school concept
High angle view of unrecognizable teacher and multi-ethnic kids doing experiments in Chemistry class
Blue school backpack with eyeglasses and stationery on white table near green chalkboard
SME, subject matter expert symbol. Concept words SME, subject matter expert on wooden blocks on a beautiful white background. Business, SME, subject matter expert concept. Copy space.

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