Children,television, and conceptions about chores: Attitudes and behaviors

This study examines the relationship between television viewing and sex role attitudes/behaviors from the perspective of cultivation theory. It uses a sample of fourth- and fifth grade children to examine if television viewing is related to children's attitudes and behaviors in relation to household chores that are typically viewed as something boys do or something girls do. The sample was equally divided into fourth and fifth graders as well as boys and girls; the racial distribution was 64% white, 21% black, and 14% other races. There were statistically significant relationships between television viewing and scores on an index of attitudes toward sex-stereotyped chores that maintained statistical significance under conditions of multiple controls. Although viewing was not related to which chores the children actually performed, there were statistically significant relationships between attitudes, behaviors, and viewing. For both the boys and girls there were moderate to strong statistically significant relationships which increased with television viewing, between attitudes about who should do certain chores, and about whether or not the children said they did chores typically associated with the other sex.     

Distance and movement time effects on the timing of agonist and antagonist muscles: a test of the impulse-timing theory

The experiment examined the effects of movement time (MT) and distance on the timing at electromyographic (EMG) activity from an agonist and antagonist muscle during rapid, discrete elbow movements in the horizontal plane. According to impulse-timing theory (Wallace, 1981) MT, not distance moved, should have a pronounced effect on the timing of EMG activity (duration of initial agonist and antagonist burst and time to onset of initial antagonist burst). The levels of MT were 100 and 160 msec and the levels of distance were 27 degrees and 45 degrees of elbow flexion. In general support of impulse-timing theory, the results of the three EMG timing measures showed that MT had a more pronounced effect on these measures than distance. In addition, the timing of EMG activity in relation to total MT remained fairly consistent across the four MT-distance conditions.     

Three stimuli for visual motion perception compared

Two arrangements yielding induced motion were used to explore the relative effectiveness of three stimulus conditions known to produce perception of motion—namely, image displacement, ocular pursuit, and object-relative displacement. In these arrangements, object-relative displacement, which resulted in induced motion, was in conflict either with ocular pursuit or with image displacement. The outcomes of these conflicts were determined by measuring the extent of induced motion. Image displacement proved more effective in competing with object-relative displacement than did ocular pursuit, which in one arrangement yielded to object-relative displacement entirely. The same pattern of results was obtained both with the usual arrangement of the moving-center type and with a stationary-center display.     

Components of syllogistic reasoning

The present research sought to understand the components of syllogistic reasoning used in a syllogistic evaluation task. In this task, subjects must indicate whether a conclusion such as “Some Yale professors are humbugs” is definitely true, or never true of a set of premises such as “Some humbugs study syllogistic reasoning; some Yale professors study syllogistic reasoning”. A modified form of componential analysis (Sternberg 1977, 1978) was used to decompose the syllogistic evaluation task with abstract content into encoding and encoding plus combination subtasks. The response-choice data from these subtasks were used to provide (a) direct tests of a proposed theory of syllogistic reasoning, and in particular, of its assumptions about sources of error in syllogistic reasoning; and (b) direct inferences regarding the representation of relations between the subject and predicate of the premises as encoded and combined. The results supported a proposed transitive-chain model of syllogistic reasoning.     

Gender Differences in Emotional Language in Children's Picture Books

Numerous examinations of children's picturebooks have found that they are gender biased againstfemales in terms of character prevalence in titles,pictures and central role, and in the type of activities engaged in by characters. This study examineda differentpotential area of gender stereotyping, genderdifferences in emotional language. Books that were readto/by a sample of primarily Caucasian preschool children during a one-week period were examinedfor evidence of stereotyping. Analysis of characterprevalence indicated that males had higherrepresentation in titles, pictures and central role.Contrary to expectation, males and females wereassociated with equal amounts of emotional language. Inaddition, no differences were found in the types ofemotional words associated with males andfemales.     

Influence of Item Content and Stereotype Situation on Gender Differences in Mathematical Problem Solving

On standardized tests of mathematical problemsolving, the typical finding has been that women scorelower than men. Experiment 1 manipulated gender labeling(female character, male character, or gender neutral) within the problem question to seewhether this accounted for gender differences inmathematical problem solving. Sixty-four seventh andeighth graders were tested on modified versions of theCanadian Test of Basic Skills (CTBS) with the resultsshowing that although gender labeling affected studentsperformance, it did not account for gender differences.Experiment 2 manipulated both gender labeling and gender stereotype threat for 174 universitystudents writing modified versions of a modelStandardized Achievement Test (SAT). Again, genderlabeling within problem questions did not account forgender differences. However, women scored lower thanmen when they believed that the test had previouslyshown gender differences. There was no gender differencein the performance of the same women and men when they believed that the test was merelycomparing Canadian students with American students. Thissuggests that gender stereotype threat could be a keyfactor in explaining gender differences in mathematical problem solving.