Effects of time of day and medium of presentation on immediate recall of violent and non-violent news

A sample of 103 subjects from a technical training college were randomly assigned to nine groups and presented with a sequence of violent and non-violent news stories either audiovisually (via television), in audio-only, or in print at three different times of day (morning—9.30 am, early afternoon—1.30 pm, and later afternoon—5.30 pm). Subjects were tested for immediate cued recall of story content immediately after presentation. There were significant main effects of presentation modality, time of day and news content. Memory for news was best from print and worst from the audiovisual presentation. Memory performance was best in the morning and worst in the evening. Violent news was recalled better than non-violent news in all media and at all times of day. There were also some interactions. Recall of violent news presented in audiovisual and audio-only modalities deteriorated more from morning to afternoon than did non-violent news recall. Non-violent news recall from these two media declined more rapidly in the second half of the day. With print, recall of both violent and non-violent news dropped off more in the late afternoon than in the morning. Practical implications of the findings for news presentation are discussed.     

A Cross-Cultural Content Analysis of Children's Television Advertisements

Two sets of television advertisements were video-recorded from weekend children's television in London and New York and were coded by two white women in terms of their gender-role portrayals. The advertised products covered by this analysis included snack and fast food, toys and breakfast cereal. Each advertisement was coded according to nine criteria including the ethnicity and gender of the people appearing, gender of central figure and of any voice over in the commercial, presence or absence of music, and other sales-related content. In general, males were more numerous than females in both American and British advertisements. There were more similarities than differences between the two national markets in terms of the nature of gender-role portrayals, with males generally occupying more central and authoritative positions. Only two analyses yielded significant differences. Girls outnumbered boys in American commercials, but the opposite was true of British commercials. Hispanic males were present in American commercials but not in British commercials.     

Television distraction and the performance of introverts and extroverts

An experiment was run to test the effect on reading comprehension of distraction by a television programme, which was presented while reading took place. Respondents, classified in terms of extroversion or introversion, carried out two reading comprehension tests in silence and in the presence of a television drama programme. As predicted, extroverts and introverts both performed better in silence, but there was a significant interaction that showed that extroverts performed better than introverts in the presence of television distraction. The findings are discussed in relation to previous research on this subject.     

Action comprehension: deriving spatial and functional relations

A perceived action can be understood only when information about the action carried out and the objects used are taken into account. It was investigated how spatial and functional information contributes to establishing these relations. Participants observed static frames showing a hand wielding an instrument and a potential target object of the action. The 2 elements could either match or mismatch, spatially or functionally. Participants were required to judge only 1 of the 2 relations while ignoring the other. Both irrelevant spatial and functional mismatches affected judgments of the relevant relation. Moreover, the functional relation provided a context for the judgment of the spatial relation but not vice versa. The results are discussed in respect to recent accounts of action understanding.     

Speed-Accuracy Response Models: Scoring Rules based on Response Time and Accuracy

Starting from an explicit scoring rule for time limit tasks incorporating both response time and accuracy, and a definite trade-off between speed and accuracy, a response model is derived. Since the scoring rule is interpreted as a sufficient statistic, the model belongs to the exponential family. The various marginal and conditional distributions for response accuracy and response time are derived, and it is shown how the model parameters can be estimated. The model for response accuracy is found to be the two-parameter logistic model. It is found that the time limit determines the item discrimination, and this effect is illustrated with the Amsterdam Chess Test II.