TL;DR: Since the removal of students from the 'normal' cohort - by delaying school entry, making students repeat, or due to students leaving before the end of year 12 - does not increase the mean tertiary entrance score of late birthday students who progress at the normal rate, it is concluded that such interventions are unrelated to academic potential.
Abstract: The Late Birthday Effect is a label given to the observation that students who fail to thrive in the early years of primary school are frequently those with late birthdays - e.g. in November and December. This effect is manifested in Western Australia where the rules for entering primary school result in late birthday students being developmentally less mature than the rest of their classmates. For how many years does this effect persist? Does it affect achievement in Senior Secondary School and, by implication, access to university?
An analysis of tertiary entrance scores for 17 year old Western Australian school leavers in 1992 and 1993 showed that for students who enter school at the normal time and who progress at the normal rate there was no evidence of lower achievement by late birthday students; however, there was a conspicuous shortfall in the number of late birthday students in this year group. A comparison with birth statistics showed that late birthday students are more likely to be aged 18 on leaving senior secondary school. They are also less likely to be university-bound than students with early birthdays.
A comparison of data from other Australian states confirmed the findings from Western Australia; namely, immature school starters are generally more likely to have their entry to school delayed or be made to repeat a year, but those who do progress at the the normal rate suffer no disadvantage in access to university. Since the rules for starting school differ from state to state, this effect is attributed to developmental maturity rather than seasonal factors affecting innate intelligence. Since the removal of students from the 'normal' cohort - by delaying school entry, making students repeat, or due to students leaving before the end of year 12 - does not increase the mean tertiary entrance score of late birthday students who progress at the normal rate, it is concluded that such interventions are unrelated to academic potential.
TL;DR: It is hypothesized that ‘birthstress’ might be imprinted in a structure of the biological rhythms of the organism, thus resulting in periodic changes of vulnerability and survivability during the course of the IAC.
Abstract: The month of birth was significantly associated with the month of death in 102, 265 individuals who died in Kiev during the period 1990–2000. A consistent trend in deaths was revelaed, with an excess around the birthday. This excesson the actual anniversary of birth was 44.4% in men (χ2 = 11.48, P <0.001) and 36.2% in women (χ2 = 7.64, P < 0.01) over the expected value. Significant variations in the mortality rate were obtained, according to the month of the individual annual cycle (IAC). The excess of mortality has been associated with the first and the last months of IAC in different age groups as well as for all major causes of death: circulatory (heart and cerebrovascular) diseases, malignant neoplasms and violent death. Neither the emotional stress nor the behavioral changes associated with the birthday can explain the results obtained. We hypothesize that ‘birthstress’ might be imprinted in a structure of the biological rhythms of the organism, thus resulting in periodic changes of vulnerability and survivability during the course of the IAC.
TL;DR: In this article, the authors introduced the concept of the real birthday effect, which holds that birthday celebrations yield better performance than those without them. But they did not consider the effect of the number of birthdays.
Abstract: While the birthday effect has been widely studied in the economics and sport literature, this study introduces the concept of the ‘real’ birthday effect. It holds that birthday celebrations yield f...
TL;DR: Gredler as discussed by the authors made a number of statements which I would like to review, presenting contrasting points of view, including the destructive aspects of Gredler's approach and the fact that the remainder of his article dealt only with the notion of maturity as it relates to achievement.
Abstract: A recent article by Gilbert R. Gredler that appeared in the Journal of Learning Disabilities (1980;13:239-242) was a reaction to DiPasquale and others (1980) regarding birthdate and achievement behavior in children. In his article, Gredler makes a number of statements which I would like to review, presenting contrasting points of view. Gredler begins by noting that there are destructive aspects of Gesellian Psychology in that maturational psychologists have been able to transmit their beliefs into changes of school practices. He notes that when people wish to debate their views in journals and conventions, no harm is done. It is dangerous when society begins to accept these beliefs and act on them. Gredler also seems to be saying that there is something inherently destructive in Gesellian Psychology and I would have assumed that the remainder of his article would have dealt fully with these destructive aspects. However, as is often the case with critics of the Gesellian Psychology, the remainder of the article deals only with the notion of maturity as it relates to achievement. This is where Gredler, as well as others who criticize Gesell, make critical errors. Those of us who believe in developmental placement proposed by the Gesell Institute are the first to admit that if we look only at achievement behavior in children, young children can often achieve and do well in academics of school. As a matter of fact, there are in the literature on developmental placement, two child characters that express this achievement behavior. They can be found in \"One Piece of the Puzzle\" (Carll & Richard 1977). These characters do quite well academically. They are of superior intellect. Other things being equal, children of superior intellect have a better chance of doing well in school academically, but the two characters described do not do well in many other facets of their lives. Socially, they are in a great deal of trouble. We are told in education that the \"whole child\" comes to school. The whole child is to be educated. Many philosophies that I have reviewed over my years in education as a teacher, counselor, psychologist, and administrator, suggest that the Gesell Institute approach is one of the few philosophies which allows us to look at the whole child. In discussing maturational psychology, Ilg and Ames (1965) talk about total school readiness, not simply readiness for academic work. When Ilg and Ames talk about overall school readiness for a child, they wish to see the child totally ready for school rather than simply be ready for cognitive or academic tasks. The children mentioned above do quite well academically, but socially are inept and in many ways dysfunctional. I imagine that Gredler would be quite content with a child who does well academically, but is experiencing social difficulties, including at times, substantial degrees of stress. These pressures often cause other psychological problems to develop in the child, but I imagine we are to set these aside because the child is doing well academically. There are children who are not young socially, but have not attained maturation in fine-motor development. The children experience difficulties in the second or third grade when cursive writing is begun. I assume that Gredler would tell us that as long as a child is reading and doing arithmetic at and above grade levels, we can put him or her in a remedial handwriting program. We could use the label \"disgraphic\" or another to explain the problems in handwriting, when all that may have been needed was time to develop more fine skills. There are children whose large motor skills are not developed. These children will have a difficult time with locomotion. The schools also take care of these children by having adaptive or remedial physical education programs and placing the children in these programs when their large-motor behavior is not smooth and graceful. Will Gredler tell us that as long as the child is doing well academically, this is fine? Finally, there are those children who are in a total way much younger developmentally than their birthday age. Despite everything else, they will likely experience failure in many different aspects of their school life and totally as a person. It would be a different matter, as Gredler suggests, if the Gesellian Philosophy were incorrect and harmful, and if he were to show totally how it were. We would waste the children's time with \"play\" rather than to get them into \"work.\" I suggest there are many reasons why their developmental approach is appropriate and necessary. Also, I agree with Gredler's example that changes in teaching also are necessary. But, I believe that the approach offered by the developmental placement program of Gesell is part of the two-pronged approach needed. I hope that if Gredler responds that his response will be directed toward a more complete picture of the Gesellian Philosophy rather than the fractionalized one in his current article.