Introduction: Our study aimed to compare the sociodemographic, diagnostic, clinical, and self-report scale data of adults diagnosed with ADHD in childhood/adolescence versus adulthood and to identify risk factors associated with delayed/missed diagnosis for ADHD. Method: Sociodemographic, clinical, and diagnostic data of 214 adults with ADHD,…

Decades-old research has demonstrated the effects of virtual space on perception mostly with adult samples. Little is known about children's ability to utilize spatial-temporal qualities from computerized settings. Past research with primary school children suggested that the ability to utilize spatial-temporal information is crucial for inferring…

Participation in adult education and training (AET) programs is increasingly important for people of all ages and is necessary to remain competitive in a world experiencing rapid technological advances. Lifelong learning activities are especially important for middle-aged and older adults who intend to work at older ages to ensure they have the…

The high dependence on technology for economic activities in developed countries stresses the importance of lifelong learning in order to equip adult workers with the skills required to perform work related tasks, and also increase labor force participation. We use data from the 2012/2014 Program for the International Assessment of Adult…

The participation in mobile learning programs is conditioned by having/using mobile communication technology. Those who do not have or use such technology cannot participate in mobile learning programs. This study evaluates who are the most likely participants of mobile learning programs by examining the demographic profile and mobile phone usage…

The research examined the peer relations of autistic children and adults. In the first study, six autistic males (ages 6-21 years) were observed over a 1-year period. Results indicated that statistically significant improvements in peer relations were not observed over the 1-year period. Subsequently the peer relations of 11 autistic persons (ages…

This study examined the hypothesis that the effective visual field of 5-year-old children is smaller than that of 8-year-old children and adults. In addition, an effort was made to determine whether task demands affect the size of the effective visual field and if so, whether the effects on performance are different for children and adults. A…

This study examined the mode of locomotion preschoolers used to traverse fence-like barriers of various heights in order to reach a goal. Preschoolers could step over the barrier, crawl under it, or walk under it. The experimental situation consisted of a room with four fences set up at different heights. Two age groups of preschool children…

Past studies have indicated that job performance in general tends not to decline with age, but performance on at least several aptitudes does decline noticeably with age. If these relationships hold up over the entire occupational range, there is the possibility that aptitude correlations with job performance may be moderated by age. To…

Used multiple regression analysis to develop demographically corrected norms for letter and category fluency in 768 normal adults. Together, age, education, and ethnicity were significant predictors of letter and category fluency performance. Presents tables for converting raw fluency scores to these norms. (SLD)

Examines the factor structure of the Wechsler Adult Intelligence Scale-Revised across nine age groups using several methods of factor analysis, including reliable component analysis (RCA). Factor structure is discussed, and the usefulness of the RCA method is demonstrated. (SLD)

Reported are two experiments investigating children's comprehension and production of the causal connectives "because" and "so" in empirical and intentional modes of explanation. In the empirical mode, "because" introduces a description of a cause, whereas "so" introduces a description of an effect. In the…

The literature on self-predictions and self-efficacy suggests that, with age, accuracy is stressed at the expense of speed in performing a psychomotor task. To investigate the relationship between self-rated performance, actual performance, and task preferences as a function of age, 175 females, ranging in age from 17 to 72 years, were placed into…

Using data collected through telephone interviews with a national sample of adults, this study searched for evidence as to whether interviewers have stronger effects on the responses given to a wide range of questions by older people than on the responses of younger people. Responses to 30 items for which significant interviewer effects had…

Post-formal operational thought is characterized by both relativism and dialecticism. To examine age differences across adulthood in relativistic and dialectical thought, and to determine whether formal operations are necessary but not sufficient for these forms of thought, 20 young (mean age, 19.6), 20 middle aged (mean age, 46.2), and 20 older…