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للتواصل تليجرام @AmrElarbey فيس بوك Amr Elarbey واتساب 01003504754
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Comparative studies:This description may sound like the aim of many
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Comparative studies examine the difference between intact groups on some independent variable of interest
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Exposed=out come "Lung cancer"
Diseases=causal ="smoker"
According to cross sectional study
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Achieve aim at the end of study while achieve objectives during study
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Master plan &over all plans and frame work refer to
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True experimental and quasi experimental are giving intervention
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Non Equivalent control grop similar to pretest and post test in all things
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True-experimental design is random and has control and experimental group
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Cross sectional give multiple etiologic for single disease
