The Search for Reliable Generalizations About Messages A Comparison of Research Strategies

Two ways of conducting the search for generalizations about messages are considered: Morley's (this volume) proposal that single-message research designs be used, with subsequent meta-analytic summaries, and Jackson and Jacobs's (1983) proposal that multiple-message designs be used, with messages treated as a random factor in the statistical analysis. Jackson and Jacobs's approach is shown to provide a more dependable, efficient, and practical means for gathering the requisite evidence for dependable generalizations. The charge that multiple-message designs suffer from irreparable problems of experimenter bias is refuted. The treatment of messages as a random factor is defended as statistically appropriate and as clearly preferable to the statistical alternatives.     

PRESCHOOL CHILDREN'S VISUAL ATTENTION TO ATTRIBUTES OF TELEVISION

Preschool children's visual attention to nearly three hours of a heterogeneous sample of children's programing was examined in relationship to the presence of 37 simple visual and auditory attributes of television programs. A factor analysis of the attributes indicated that they were largely independent, with the exception of two factors, which were labeled “women and children” and “puppets.” Attributes and factors that were positively related to attention were the puppet factor, women and children factor, auditory changes, peculiar voices, movement, cuts, sound effects, laughter, and applause. Attributes that were negatively related to attention were adult male voices, extended zooms and pans, eye contact, and still shots. Other attributes had both positive and negative effects on attention depending on whether the child was looking at the TV at the time the attribute occurred. It is suggested that attributes are positive or negative to the degree to which they signal informative comprehensible content.     

Asymmetrical Relations, Identity and Abortion

ABSTRACT In this article I freely use the thought of Charles Hartshorne to defend the ethical permissibility of abortion in the early stages of pregnancy. In the later stages of pregnancy the fetus has an ethical status similar to that of a sentient yet non-rational animal, a status which should generate in us considerable ethical respect. The distinctiveness of this Hartshornian approach lies in the effort to bring metaphysics to bear on a controversial issue in applied ethics. In particular, the metaphysical issue of temporal relations is crucial to consider in the effort to ascertain the ethical status of the fetus. Two symmetrical (immoderate) theories of temporal relations are criticised, one of which provides the basis for opposition to abortion, a theory wherein one is internally related both to one's past and to one's future. An asymmetrical (moderate) theory of temporal relations is defended, a theory wherein one is internally related to one's past yet externally related to the future. This latter theory would permit abortion in the early stages of pregnancy.