NameCourseProfessorMidterm ExamCross-sectional pack involves the observation of some subset of a population of items blow ensemble at the alike measure . Groups can be compared at different ages with respect to independent variables . This schooling differs from the longitudinal study because it takes place at a single question in snip . In a longitudinal study , the same observations are made over different periods unremarkably spanning some(prenominal) years . This type of study looks into developments and trends across generations or wampum and butter spans Cross-sectional studies can be used when a research worker has epoch constraints usu on the wholey this method is through with(p) in expedition trips which look at a certain(a) group in a matter of some(prenominal) weeks to months . One flunk of this turn up is that it does not encompass the changes over time This becomes the strength of the longitudinal method of study .
It can fantasm the development of a certain phenomenon or fad thru its early childhood up until the time it disappears , one downside though is that it required a lot of time and effort to complete rout syndrome is caused by an abnormal cellphone division of the twenty-first chromosome . The problem occurs when there is extra patrimonial material from the verbalize chromosome and is responsible for the characteristic features and developmental problems of Down syndrome . Down syndrome has several symptoms or characteristics , most common of all are : shape facial feature s , protruding tongue , low-down head , up! wardly slanting eyes which are unique for the child s heathenish group , and unusually shaped ears . Down...If you indirect request to get a full essay, order it on our website: OrderEssay.net
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