Lee Chul-Joo, Niederdeppe Jeff
School of Communication, Ohio State University.
Department of Communication, Cornell University.
Communic Res. 2011 Dec;38(6):731-753. doi: 10.1177/0093650210384990.
Cultivation theory and research has been criticized for its failure to consider variation in effects by genre, employ appropriate third-variable controls, and determine causal direction. Recent studies, controlling for a variety of demographic characteristics and media use variables, have found that exposure to local television (TV) newscasts is associated with a variety of problematic "real-world" beliefs. However, many of these studies have not adequately assessed causal direction. Redressing this limitation, we analyzed data from a two-wave national representative survey which permitted tests of lagged association between overall TV viewing, local TV news viewing, and fatalistic beliefs about cancer prevention. We first replicated the original cultivation effect and found a positive association between overall TV viewing at time 1 and increased fatalistic beliefs about cancer prevention at time 2. Analyses also provided evidence that local TV news viewing at time 1 predicts increased fatalistic beliefs about cancer prevention at time 2. There was little evidence for reverse causation in predicting changes in overall TV viewing or local TV news viewing. The paper concludes with a discussion of theoretical and practical implications of these findings.
培养理论及其研究受到了批评,原因在于它未能考虑不同类型节目的效果差异、未采用适当的第三变量控制以及未确定因果方向。近期的研究在控制了各种人口统计学特征和媒体使用变量后发现,接触本地电视新闻广播与各种有问题的“现实世界”信念相关。然而,这些研究中的许多都没有充分评估因果方向。为了弥补这一局限性,我们分析了一项两阶段全国代表性调查的数据,该数据允许对总体电视观看、本地电视新闻观看以及对癌症预防的宿命论信念之间的滞后关联进行测试。我们首先重复了最初的培养效果,发现第一阶段的总体电视观看与第二阶段对癌症预防的宿命论信念增加之间存在正相关。分析还提供了证据表明,第一阶段的本地电视新闻观看可预测第二阶段对癌症预防的宿命论信念增加。在预测总体电视观看或本地电视新闻观看变化时,几乎没有反向因果关系的证据。本文最后讨论了这些发现的理论和实际意义。