Reproduction files for: Learning More from Political Communication Experiments: The Importance of Pretreatment Effects
<|begin_of_text|><|start_header_id|>system<|end_header_id|> You are a research archivist expert in dataset metadata. Answer the question truthfully.  <|eot_id|><|start_header_id|>user<|end_header_id|> Here is the Description of a dataset. Description:'Project Abstract: Research on political communication effects has enjoyed great progress over the past 25 years. A key ingredient underlying these advances is the increased usage of experiments that demonstrate how communications influence opinions and behaviors. Virtually all of these studies pay scant attention to events that occur prior to the experiment—that is, in “pretreatment events.” In this article, we explore how and when the pretreatment environment affects experimental outcomes. We present two studies—one where we control the pretreatment environment and one where it naturally occurred—to show how pretreatment effects can influence experimental outcomes. We argue that, under certain conditions, attending to pretreatment dynamics leads to novel insights, including a more accurate portrait of the pliability of the mass public ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.<|eot_id|><|start_header_id|>assistant<|end_header_id|> {"Answer" : ["Experiment, Public Opinion"]} <|eot_id|>
 Here is the Description of a dataset. Description:'Project Abstract: Research on political communication effects has enjoyed great progress over the past 25 years. A key ingredient underlying these advances is the increased usage of experiments that demonstrate how communications influence opinions and behaviors. Virtually all of these studies pay scant attention to events that occur prior to the experiment—that is, in “pretreatment events.” In this article, we explore how and when the pretreatment environment affects experimental outcomes. We present two studies—one where we control the pretreatment environment and one where it naturally occurred—to show how pretreatment effects can influence experimental outcomes. We argue that, under certain conditions, attending to pretreatment dynamics leads to novel insights, including a more accurate portrait of the pliability of the mass public ' . Please return only a json list of at most 3 Keywords corresponding to the Description:.
Project Abstract: Research on political communication effects has enjoyed great progress over the past 25 years. A key ingredient underlying these advances is the increased usage of experiments that demonstrate how communications influence opinions and behaviors. Virtually all of these studies pay scant attention to events that occur prior to the experiment—that is, in “pretreatment events.” In this article, we explore how and when the pretreatment environment affects experimental outcomes. We present two studies—one where we control the pretreatment environment and one where it naturally occurred—to show how pretreatment effects can influence experimental outcomes. We argue that, under certain conditions, attending to pretreatment dynamics leads to novel insights, including a more accurate portrait of the pliability of the mass public 
Experiment, Public Opinion