| 31. | "Can I tell you if there's any causal relationship?
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| 32. | Is it a causal relationship between prohibition and popularity?
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| 33. | They conclude that there is a causal relationship between telecommunications infrastructure investment and aggregate output.
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| 34. | Regression analysis is widely used for prediction and causal relationships between the independent and dependent variables.
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| 35. | The causal relationship is often a little spotty.
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| 36. | No experimental or longitudinal studies have demonstrated a true causal relationship between emotion and sudden conversion.
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| 37. | This is why validity is important for quasi experiments because they are all about causal relationships.
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| 38. | Also, correlations in economics are always dangerous because they do not prove or establish causal relationships.
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| 39. | No definitive causal relationship has yet been established.
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| 40. | The U . S . government insists there is no scientific proof of a causal relationship.
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