Isabelle D. Cherney

Children's Drawings: A Mirror to Their Minds.

Children’s drawings are thought to be a mirror of a child’s representational development. Research suggests that with age children develop more complex and symbolic representational strategies and reference points become more differentiated by gender. We collected two drawings from 109 5–13‐year‐old children (three age groups). Each child drew their family and their school and participated in an independent recall task. The results indicated significant gender and age differences in the number of details depicted in the family drawings. There were also significant differences between boys’ and girls’ stereotyped drawings, usage of proportionality, and clothing. With age, children tended to draw more aerial views of their school. The results are discussed in terms of the contribution children’s drawings can make to the study of cognitive development and vice versa, as well as their importance for education.

Mapping out spatial ability: sex differences in way-finding navigation.

This study examined how navigational strategies, map drawing, and map reading skills may be related in spatial perception performance of 124 U.S. undergraduate men and women who completed one of two versions of Collaer and Nelsons Judgment of Line Angle and Position–15 test and Piagets Water Level Test. Analysis indicated sex differences in performance were eliminated when self-perceptions of map reading, map drawing, and navigational skills were used as covariates. The men used an orientation (cardinal), whereas the women used a landmark way-finding strategy. Introducing a fine motor skill to solve the Judgment of Line Angle and Position–15 eliminated the sex difference. The data suggest spatial perception is in part influenced by map reading and way-finding strategies.

Sex differences in line judgment: relation to mathematics preparation and strategy use.

This study explored visuospatial ability using a new group-administered task, the Judgment of Line Angle and Position-15 test (JLAP–15). We investigated how this task relates to the Vandenberg Mental Rotation Test and whether the sex difference in performance could be explained by the number of prior mathematics courses or strategy used. Undergraduates (n = 86 men and 112 women) completed the two tests and reported their strategies. Men had higher scores than women on both tests (d = 1.04 for JLAP–15 and 1.10 for the Vandenberg Mental Rotation Test), with a significant intertask correlation of .41. Regression analyses indicated that strategy type, number of mathematics courses completed, and sex were significant predictors of performance on the JLAP–15 but only accounted for 21% of the variance.

Young children's classification, stereotyping and play behaviour for gender neutral and ambiguous toys

Developmental intergroup theory would predict that children develop fewer or weaker stereotypes about toys that have less distinguishable gender attributes than those that are clearly associated with a gender. The purpose of this study was to investigate the role of neutral and ambiguous toys in 31 three‐ to five‐year‐old children’s play behaviour and understanding about gender. Overall, children did not categorise more perceptually salient (ambiguous) toys than less distinguishable (neutral) toys to their own gender. Colour was the most frequently used reason for the toys’ gender assignment. The findings also showed that with age, girls’ play complexity increased linearly, whereas boys’ scores did not. A play substitution scale measuring play creativity or maturity showed no gender differences. The discussion highlights the role of perceptual salience in sex‐dimorphic toy preferences and behaviour and their application to educational issues.

Experiential factors in sex differences on mental rotation.

Past research has shown that men score significantly higher than women on mental rotation tests. The present study examined the effects of a prior exposure to a mental rotation task, i.e., adapted Cube Comparison test, and to three-dimensional objects, i.e., Legos™, on the performance on the Mental Rotation Test. 113 men and women were randomly divided into three conditions: control, exposure, or detailed instructions. On average, men outperformed women. Further analyses showed that sex differences were significant in the control condition but not in the other two, suggesting that a cuing effect may explain some of the robust sex differences in visuospatial tasks.

Training spatial skills in men and women.

Recent studies suggest that even short-term video game training may transfer to other cognitive tasks. With the popularity of the Nintendo Wii with women, more of them might be exposed to the games that will increase their mental rotation skills. Because performance on mental rotation tests (MRT) has been linked to math performance in women, and thus may ultimately contribute to the under-representation of women in STEM fields, it is important to continue to explore ways to decrease or eliminate the robust sex difference in mental rotation. The present study of 30 men and 30 women provides additional evidence that women may benefit from short-term (1 hour) training on either a Nintendo Wii™ or GameCube console to increase their mental rotation skills. One hour of video game training not only increased womens MRT scores to a level similar to mens scores, but also produced greater average improvement for women, even when controlling for experiential factors such as spatial and masculine childhood activities that could contribute to the sex difference in spatial ability.

SEX DIFFERENCES IN NINTENDO Wii™ PERFORMANCE AS EXPECTED FROM HUNTER-GATHERER SELECTION

To test the hunter-gatherer theory of cognitive sex differences, men and women each played four video games on a Wii™ console: two games simulating skills necessary for hunting (navigation and shooting) and two games simulating skills necessary for gathering (fine motor and visual search). Men outperformed women on the two hunting games, whereas there were no sex differences on the gathering skill games. The findings are discussed in terms of evolutionary psychology theory.

Sex Differences in Effects of Testing Medium and Response Format on a Visuospatial Task

Sex differences on visuospatial tests are among the most reliably replicated. It is unclear to what extent these performance differences reflect underlying differences in skills or testing factors. To assess whether testing medium and response format affect visuospatial sex differences, performances of introductory psychology students (100 men, 104 women) were examined on a visuospatial task presented in paper-and-pencil and tablet computer forms. Both sexes performed better when tested on paper, although men outperformed women. The introduction of an open-ended component to the visuospatial task eliminated sex differences when prior spatial experiences were controlled, but men outperformed women when prior spatial experiences were not considered. In general, the open-ended version and computerized format of the test diminished performance, suggesting that response format and medium are testing factors that influence visuospatial abilities.