Sentiment analysis is a computational method that automatically analyzes the valence of massive quantities of text. Basic sentiment analysis involves extracting and counting emotionally-laden keywords from passages of text (e.g., "hate," "love," "happy," "sad"). This study describes using sentiment analysis…

Children with conduct problems are at greater risk for internalizing problems. The objectives of this study were to (1) examine trajectories of internalizing problems among children with and without clinically significant conduct problems during the transition to adolescence; and (2) identify how academic achievement, peer rejection, parent…

The aim of this study was to examine the antecedents of cross-racial/ethnic friendships and same-racial/ethnic friendships. The sample consisted of 444 (161 African American, 108 European American, 100 Asian American, and 75 Latino) children who were in the fourth grade from 39 classrooms in 10 public elementary schools. Results of Mixed Linear…

Research on children's knowledge of illnesses has largely concentrated on studying how children reason about common innocuous diseases. It is also important to uncover how children reason about more severe diseases, such as cancer, to be able to treat and communicate with children diagnosed with this disease. Several aspects of prevalent childhood…

Reports results of a study of the development of perspective-taking skills of 180 English children aged six through ten. Children first are able to represent the object nearest the observer, then before-behind relationships, and subsequently left-right relationships between objects. Questions Piagetian conclusions that perspective-taking ability…

A total of 192 second- to sixth-grade children, showing three different levels of class-inclusion answers (failure, correct answer based on counting, correct answer based on logical reasons), performed four necessity tasks. Results are discussed with reference to individual and constructive generalization processes. (Author/RH)

Two studies assessed the way in which changes in appearance and sex-typed names affected the performance of 124 preschool, second-, and fourth-grade children on a gender constancy task. Results suggest that children who lack an understanding of gender constancy can be misled by changes in appearance and name cues. (RJC)

Examined the relationship between 7-, 9-, and 11-year old children's performance on a battery of selected Piagetian measures and on a proportional reasoning task. Found a strong relationship between stage level and (1) the complexity of hypotheses used, (2) the use of the proportional hypothesis, and (3) the overall use of logical hypotheses. (HOD)