정세훈 교수

Although numerous media literacy interventions have been developed and delivered over the past 3 decades, a comprehensive meta-analytic assessment of their effects has not been available. This study investigates the average effect size and moderators of 51 media literacy interventions. Media literacy interventions had positive effects (d=.37) on outcomes including media knowledge, criticism, perceived realism, influence, behavioral beliefs, attitudes, self-efficacy, and behavior. Moderator analy

In this research, multitasking with media is defined as an audience behavior that combines media use with another non-media activity. This study examines (a) the prevalence and patterns of multitasking among 14- to 16-year-olds and (b) the media and audience factors that predict such behavior. Consistent with previous research, this study found that youth frequently multitask with media. Both (a) ownership of media in bedrooms as a media factor and (b) sensation seeking as an audience factor wer

The purpose of this study is to test the persuasive effects of visual metaphors in advertising. Advertisements containing visual metaphors deliver persuasive arguments in visual modality and metaphorical style of rhetoric, both of which may increase the persuasiveness of messages. The study has three message conditions that are advertisements containing (a) non‐metaphorical (literal) visual image with verbal argument; (b) metaphorical visual image with verbal argument; and (c) metaphorical image

Despite the recent proliferation of research on media multitasking, a comprehensive meta-analytic review of its effects has not been available. Based on a review of 49 media multitasking studies, this meta-analysis showed that multitasking has negative effects on cognitive outcomes, whereas it has positive effects on attitudinal (or persuasion-related) outcomes. Moderator analyses suggested that the negative effects of multitasking on cognitive outcomes varied by (a) user control, (b) task relev

This study examined the effects of multitasking on persuasion, including comprehension and counterarguing of persuasive messages, which were presented in three different contexts: (a) nonmultitasking with full attention paid to the message, (b) multitasking with primary attention paid to the message, and (c) multitasking with secondary attention paid to the message. Consistent with predictions, the results suggested that multitasking reduced the actual and perceived levels of comprehension and a

The present study tests and extends the RISP model (a) by applying the model in the context of COVID-19 in South Korea and (b) by examining the impacts of information seeking and processing on misinformation exposure and acceptance. Based on a survey of 346 Korean adults, this study showed that information avoidance, but not information seeking, was a positive predictor of misinformation exposure. In addition, heuristic processing, but not systematic processing, moderated the relationship betwee

This study tested the effects of news stories that offer gene-based explanations of obesity compared to behavior-based and complex (combining genetic and behavioral) explanations on Korean undergraduate students. Controllability attribution and willingness to help obese people were expected as outcomes of the 3 different news types based on attribution theory. The study results indicate significant interactions between news types and audiences' predispositions (i.e., health control beliefs) on t

Young audiences frequently combine media use (e.g., television viewing) with other activities (e.g., homework); this is referred to as multitasking. This research uses longitudinal data to examine the moderating role of multitasking by examining the effects of exposure to sexual content in the media on adolescents' sexual behavior. Consistent with the predictions based on the limited capacity approach, there was a significant multitasking by exposure interaction suggesting that multitasking redu

The risk information seeking and processing (RISP) model posits that information insufficiency could lead to information seeking, and the effect could be moderated by relevant channel beliefs and perceived information gathering capacity. The RISP model is tested in the context of Koreans’ risk information seeking and processing related to toxic chemicals in consumer products. The present study showed that the impact of information insufficiency was moderated by relevant channel beliefs. On the o

The risk information seeking and processing model predicts information-seeking behavior based on a number of factors, including information insufficiency. Using the risk information seeking and processing model, the present study experimentally manipulated the two components of information insufficiency (i.e., sufficiency threshold and current knowledge). Sufficiency threshold was manipulated using information about radon risk with varying levels of social distance, whereas current knowledge was

Although the inhibiting effects of multitasking can be explained by 2 components, capacity interference (CI) and structural interference (SI), studies that have specifically focused on SI are limited. Thus, the present study examined the effects of SI in persuasion using 2 experimental studies. Results of Study 1 showed that SI (not CI) reduced both comprehension and counterarguing. In addition, results of Study 2 showed that SI effects occur not only in single-channel multitasking but also in d