Age and sex differences in object control skills by children ages 5 to 14

Object control skills provide children the tools to be physically active-a major societal priority. At the fundamental movement level, object control skills form the foundation of further sports skill development. The purpose of this study was to examine children's (ages 5 to 14 years, Grades K-8) development of four key object control skills: catching, throwing, kicking, and striking. 186 children were tested on selected items from the Object Control Subtest of the Test of Gross Motor Development-2, using a cross-sectional and correlational design. As anticipated, significant differences were found for age on all four skills. These improvements were characterized by early, rapid gains at ages 9 to 10, beyond which development occurred at a slower rate for catching, throwing, and kicking; striking development continued at a steady rate to age 14 years. Contrary to previous findings, no overall sex differences were found for catching or kicking. Overall sex differences favoring boys were observed for throwing and striking. Implications for evolutionary contributions to throwing and striking were discussed.     

Physical performance in relation to age, sex, birth order, social class, and sports activities of preschool children

Physical performance of 1,194 preschool children, ages 43 to 84 mo. was related to characteristics of physical growth, cognitive performance, and social variables. Correlations between measures of physical growth and physical performance and between motor and cognitive performance were positive and significant. Physical fitness, body coordination, and manual dexterity improved across age groups. Significant sex differences were found, although boys exceeded on some measures and girls on others. Children with older sisters or brothers performed better than only or first-born children, and children who participated in sports activities outside school outperformed those who did not.     

The relationship between IQ, social class and EEG findings in healthy children investigated by child-psychiatric methods

Abstract.— 222 children aged between 4.5 and 16.5 years. who were found to be normal by strict somato-neuro-logical criteria, were investigated by EEG and by child-psychiatric methods. Intelligence tests were performed according to WISC. The mean intelligence quotient amounted to 116.3± 12.4 in boys and 116.6± 14.1 in girls. Child-psychiatric findings deviating from the strictly normal occurred in 30 children significantly more frequently in social class III compared to I and 11. There was no relationship of significance between IQ and social group. No relevant relationship was found between IQ and psychiatric variables, nor between IQ and EEG-findings. The absence of the normal fixed relationship between IQ and social group is a notable finding, as is also the high average IQ. The strict normal criteria may have contributed to the exclusion of individuals with lesions and thus diminished factors having an inhibitory effect of the development of intelligence.     

Brain size and cognitive ability: Correlations with age,sex, social class,and race

Using data from magnetic resonance imaging (MRI), autopsy, endocranial measurements, and other techniques, we show that (1) brain size is correlated with cognitive ability about .44 using MRI; (2) brain size varies by age, sex, social class, and race; and (3) cognitive ability varies by age, sex, social class, and race. Brain size and cognitive ability show a curvilinear relation with age, increasing to young adulthood and then decreasing; increasing from women to men; increasing with socioeconomic status; and increasing from Africans to Europeans to Asians. Although only further research can determine if such correlations represent cause and effect, it is clear that the direction of the brain-size/cognitive-ability relationships described by Paul Broca (1824–1880), Francis Galton (1822–1911), and other nineteenth-century visionaries is true, and that the null hypothesis of no relation, strongly advocated over the last half century, is false.     

Loneliness, social interaction, and sex roles

Forty-three male and 53 female college seniors maintained the Rochester Interaction Record for 2 weeks, providing information about every social interaction of 10 minutes or more. Subjects then completed the revised UCLA (University of California, Los Angeles) Loneliness Scale and the Personal Attributes Questionnaire, measuring sex-role orientation. For both sexes, loneliness was negatively related to the amount of time spent with females and to the meaningfulness of interaction with males and females. However, meaningfulness with males was more important than meaningfulness with females. Femininity was negatively related to loneliness for both sexes and partially mediated the above relationships. There were sex differences, however, in the extent to which variables overlapped in predicting loneliness. For example, a large group of nonlonely males was characterized both by having meaningful relationships with males and by spending time with females, whereas a second group of nonlonely males was characterized simply by having meaningful relationships with males. The largest group of nonlonely females was characterized simply by having meaningful relationships with males, but another sizable group was characterized simply by spending time with females. Females doing both accounted for very little of the variance.     

Association of country, sex, social class, and life cycle to locus of control in western European countries

Relatively few studies have focused on causal factors in the development of locus of control. Here nine western European countries are studied to assess the hypothesis that the society in which one lives is important in the scores on locus of control. The data indicate greater variation resulting from country of residence on locus of control than that from the variables of life cycle, sex, and social class. Findings regarding these latter variables are congruent with previous research. In addition, being single was related to having an external locus of control.     

Modeling,praising, and collaborating: Effects of adult behavior on children of the same sex and opposite sex

The study assessed children's responsiveness to adults of both sexes as a function of the adults behavior. Paris of male and female adults administered games to 96 children. Each child was assigned to either the modeling, praise, or collaboration condition. Depending on the condition, each adult, in turn, (a) modeled selection of a specific set of play materials, (b) praised the child for playing with the materials, or (c) collaborated with the child while they played together with the materials. Results showed a greater responsiveness to the same-sex adult in the collaboration condition and to the cross-sex adult in the praise condition, as measured by the time spent playing with the materials previously associated with each adult and by comments to each adult. In the modeling condition, there was a nonsignificant same-sex effect for children's actual responsiveness, but a significant same-sex effect for self-reported responsiveness. Sex-typing scores, which were independently assessed, were related to same-sex responsiveness in the collaboration condition only. Different, and perhaps complementary, influences of same-sex and cross-sex adults on children's sex-typed preferences are considered.     

Complicating race: the relationship between prejudice, race, and social class categorizations

Although racial stereotyping and prejudice research have received considerable attention, the important element of social class has been largely excluded from social psychological research. Using the Statement Recognition Procedure, two experiments investigated social categorization along race and social class dimensions, the influence of racial and social class prejudice on these categorizations, and differences between White and Black perceivers. Analyses conducted at the subtype of race and social class memberships demonstrated differing patterns of categorization based on subtype membership. For example, lowerclass Black targets were primarily categorized by race, whereas middle-class Black targets were primarily categorized by social class. The results demonstrate the importance of considering social class membership independent of and in conjunction with race. Theoretical and methodological implications regarding the study for race and social class categorizations are discussed.     

Effects of sex composition by class and instructor's sex on physical self-efficacy of college men

The relationship of sex composition of class and instructor's sex to Physical Self-efficacy has yielded conflicting results in several studies. This study examined the relationship of sex composition of class and instructor's sex to scores on Physical Self-efficacy, Perceived Physical Ability, and Physical Self-presentation Confidence of 80 male students enrolled in one of four sections of a strength training class. Analysis indicated no significant difference on Physical Self-efficacy between male students who were enrolled in all male classes or in coeducational classes; improvements in scores on Physical Self-efficacy were not specific to the sex composition of the class or sex of the instructor and no significant difference on Perceived Physical Ability and Physical Self-presentation Confidence between male students who joined an all male class or a coeducational class. Perceived Physical Ability improved from the pretest to the posttest in all classes; and no improvement in scores for Physical Self-presentation Confidence was found in all classes. In conclusion, the analysis showed sex composition of the class and sex of the instructor were not significantly related to scores for self-efficacy.     

Relationships of children's grade in school,sex, and social class to teachers' ratings on the behavior problem checklist

The present study investigated the relationships of children's grade in school, sex, and social class to teachers' ratings on the Behavior Problem Checklist (BPCL). The sample consisted of 1,999 white children from kindergarten through fifth grade who were in regular classes. Three conclusions may be drawn from the study. The first is that grade and the interactions of grade with sex and social class are determinants of scores on the BPCL, but that no particular trends are characteristic of the relationships between these and the dependent variables. The second is that sex and social class are also determinants of scores on the BPCL, with boys and children from the lower social classes having more problems and girls and children from the higher social classes having fewer problems. The third is that the differences between schools and between teachers are responsible for more of the variance on the BPCL than grade, sex, and social class.For permission and assistance in obtaining the sample, the authors gratefully acknowledge John Bowser, superintendent of the Alief Independent School District, Alief, Texas. The authors thank Dorothy Schreiner, secretary-to-the-superintendent, and the following school principals and their teachers for their valuable cooperation: Betty A. Bennett, Jane E. Hunt, Bertha Jamison, James Keel, and James R. Woodfin. Appreciation is also expressed to Richard M. Patterson and James J. Wilmoth who generously offered their advice concerning the data analysis.     

Sex-role imitation in children: Effects of sex of child,sex of model,and sex-role appropriateness of modeled behavior

The qualifying influence of the sex-role appropriateness of observed behavior on children's same-sex imitation was investigated. In each of two studies employing a 2×2×2 design, girls and boys observed a live male or female model display appropriate (to the child's sex) or inappropriate behavior. Results that were consistent in both studies indicated an interaction between sex of child and appropriateness. Boys imitated less when exposed to the inappropriate than to the appropriate sequence. An interaction between sex of child and sex of observer was obtained on only one measure in Experiment I (girls responded more quickly to a female than to a male model). In this study, girls also displayed greater opposite-sex imitation than boys; in Experiment II, there were no differences between boys and girls in either same- or opposite-sex imitation. The results are discussed with regard to the same-sex hypothesis and the differential impact of sex-role factors on boys and girls.The authors wish to thank the children, parents, and staff of Forest Park Elementary School for their participation and cooperation in the conduct of this study. Special thanks are extended to Mr. Paul H. Daby, Principal. The contribution of the undergraduate models and experimenters is also acknowledged.     

Virtual social interactions in social anxiety--the impact of sex, gaze, and interpersonal distance

In social interactions, interpersonal distance between interaction partners plays an important role in determining the status of the relationship. Interpersonal distance is an important nonverbal behavior, and is used to regulate personal space in a complex interplay with other nonverbal behaviors such as eye gaze. In social anxiety, studies regarding the impact of interpersonal distance on within-situation avoidance behavior are so far rare. Thus the present study aimed to scrutinize the relationship between gaze direction, sex, interpersonal distance, and social anxiety in social interactions. Social interactions were modeled in a virtual-reality (VR) environment, where 20 low and 19 high socially anxious women were confronted with approaching male and female characters, who stopped in front of the participant, either some distance away or close to them, and displayed either a direct or an averted gaze. Gaze and head movements, as well as heart rate, were measured as indices of avoidance behavior and fear reactions. High socially anxious participants showed a complex pattern of avoidance behavior: when the avatar was standing farther away, high socially anxious women avoided gaze contact with male avatars showing a direct gaze. Furthermore, they showed avoidance behavior (backward head movements) in response to male avatars showing a direct gaze, regardless of the interpersonal distance. Overall, the current study proved that VR social interactions might be a very useful tool for investigating avoidance behavior of socially anxious individuals in highly controlled situations. This might also be the first step in using VR social interactions in clinical protocols for the therapy of social anxiety disorder.     

Type A behavior pattern, sex, and social support

Low social support has been suggested as a contributing factor to cardiac disease in some individuals with Type A Behavior Pattern. A number of studies have focused on the relationship between social support and Type A traits in subjects without cardiac disease as a means of evaluating this hypothesis; however, results of these studies have been confusing. In the current study, involving samples of adolescents and working adults, there was a significant positive correlation between Type A scores and satisfaction with social support in men but not in women.     

Laboratory strength measures of talented and less talented Greek children ages 9 to 10 years

The purpose was twofold: (1) to assess whether laboratory tests can distinguish talented groups and less talented groups of children identified by their total scores in a battery of field tests and (2) to evaluate whether scores in field and laboratory tests are correlated. 36 children (ages 9 to 10 years) were divided into groups of higher and lower total scores on standing long jump, medicine ball throw, and sprint. Both groups were tested for maximum isometric force, force produced at the initial 100 msec., reactive force index, drop jump height, squat jump height, and maximum pedaling rate. Analysis showed the talented group had significantly (p < or = .05) higher scores on maximum isometric force, force produced in the initial 100 msec., and drop jump height than less talented children. Moderate to high correlations were found among scores for field performance tests with maximum pedaling rate. In conclusion, the laboratory tests distinguished the talented and less talented children in maximal isometric force, the force produced at the initial 100 msec., the reactive force index, and the drop jump height.