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There is an increasing support from international organizations and the research community for stepping beyond infant or child mortality as the most common child level social indicator and progressing towards an international measure of child development. The Early Development Instrument (EDI) is a teacher-completed measure of children's developmental health at school entry, which to date has been used in more than a dozen countries. The EDI includes five developmental domains (Physical Health and Well-being, Social Competence, Emotional Maturity, Language and Cognitive Development and Communication Skills and General Knowledge) and 16 subdomains. This paper examines the EDI's psychometric properties in four English-speaking countries (Canada, Australia, United States and Jamaica) by evaluating both the internal consistency and factor structures, as well as exploring the association between the EDI's Language and Cognitive Development Domain and a direct assessment of children's receptive vocabulary (Peabody Picture Vocabulary Test, PPVT). Overall, the factor loadings and internal consistencies of domains and subdomains were similar across the countries. The comparisons of the Language and Cognitive Development Domain with the PPVT showed high specificity and low sensitivity. The results of this paper indicate that the EDI, a measure of children's developmental status at school entry, demonstrates similar psychometric properties in a number of countries, thus building the evidence for the instrument to be added to the limited array of internationally comparable child social indicators. [ABSTRACT FROM AUTHOR]

Sleep duration has figured into claims of two trends promoted recently as dysfunctional in the mass media. One is the observation that the population at large is sleeping less than before. The second is that the annual change from Standard Time to Daylight Savings (or summer) Time causes adverse effects, largely through the loss of an hour's sleep. This paper relies on recent Canadian and U.S. time-use data to empirically test both of these value-laden allegations. Analysis of Statistics Canada's general social surveys containing time-use information in 1986, 1992, 1998, and 2005 shows that the mean duration of sleep was unchanged between 1986 and 1998 and actually declined by about 15 min a night in 2005, reflecting an earlier bedtime and unchanged arising time. Sleep duration is not constant in the population, though, and the media view might reflect the habits of population sectors such as the intelligence with great access to the media. The American Time Use Study sample of 20,720 respondents in 2003 enabled the analysis of time-use before, on, and after the dates of semi-annual time changes that year. These data showed that any sleep time 'lost' in the spring-forward time change was insignificant and short-lived due to the fact that it occurred on the night between Saturday and Sunday, when people typically sleep much longer than on weekdays. While there are other time trade-offs observed after time changes, their explanation lies in other directions. [ABSTRACT FROM AUTHOR]

There is an increasing support from international organizations and the research community for stepping beyond infant or child mortality as the most common child level social indicator and progressing towards an international measure of child development. The Early Development Instrument (EDI) is a teacher-completed measure of children's developmental health at school entry, which to date has been used in more than a dozen countries. The EDI includes five developmental domains (Physical Health and Well-being, Social Competence, Emotional Maturity, Language and Cognitive Development and Communication Skills and General Knowledge) and 16 subdomains. This paper examines the EDI's psychometric properties in four English-speaking countries (Canada, Australia, United States and Jamaica) by evaluating both the internal consistency and factor structures, as well as exploring the association between the EDI's Language and Cognitive Development Domain and a direct assessment of children's receptive vocabulary (Peabody Picture Vocabulary Test, PPVT). Overall, the factor loadings and internal consistencies of domains and subdomains were similar across the countries. The comparisons of the Language and Cognitive Development Domain with the PPVT showed high specificity and low sensitivity. The results of this paper indicate that the EDI, a measure of children's developmental status at school entry, demonstrates similar psychometric properties in a number of countries, thus building the evidence for the instrument to be added to the limited array of internationally comparable child social indicators.

The article presents a study on the comparisons of health outcomes for children living in Canada, England, Norway, and the U.S. Results of the study indicated that Norwegian children have better health than children in the other three countries but Canadian children have better over-all parental assessed status. However, U.S. children rank ahead in terms of anxiety, hyperactive behavior and depression while English children have better outcomes for less likely to have accidents and injuries.

Sleep duration has figured into claims of two trends promoted recently as dysfunctional in the mass media. One is the observation that the population at large is sleeping less than before. The second is that the annual change from Standard Time to Daylight Savings (or summer) Time causes adverse effects, largely through the loss of an hour's sleep. This paper relies on recent Canadian and U.S. time-use data to empirically test both of these value-laden allegations. Analysis of Statistics Canada's general social surveys containing time-use information in 1986, 1992, 1998, and 2005 shows that the mean duration of sleep was unchanged between 1986 and 1998 and actually declined by about 15 min a night in 2005, reflecting an earlier bedtime and unchanged arising time. Sleep duration is not constant in the population, though, and the media view might reflect the habits of population sectors such as the intelligence with great access to the media. The American Time Use Study sample of 20,720 respondents in 2003 enabled the analysis of time-use before, on, and after the dates of semi-annual time changes that year. These data showed that any sleep time "lost" in the spring-forward time change was insignificant and short-lived due to the fact that it occurred on the night between Saturday and Sunday, when people typically sleep much longer than on weekdays. While there are other time trade-offs observed after time changes, their explanation lies in other directions.

Where data exist, measures of average happiness in industrialized countries typically show little or no upward trend over time, despite substantial growth in real per capita incomes. This paper examines the existing Canadian data to see if they support this generalization. The Canadian data have some overall positive trend. Some simple regressions suggest that per capita real incomes are positively associated with happiness, while unemployment and inflation appear to be negatively associated with happiness, a result also found in recent studies of Western Europe and the United States. Controlling for these variables, a negative time trend emerges.