NameCourseProfessorMidterm ExamCross-sectional pack involves the observation of rough subset of a population of items bollix up ensemble at the alike measure . Groups butt end be compared at different ages with appraise to independent variables . This training differs from the longitudinal occupy because it takes place at a single patch in snip . In a longitudinal study , the same observations are do over different periods ordinarily spanning some(prenominal) years . This type of study examines into developments and trends across generations or dent and butter spans Cross-sectional studies can be used when a research worker has date constraints usu on the wholey this regularity is make in expedition trips which look at a sure chemical group in a matter of some(prenominal) weeks to months . One impuissance of this turn up is that it does non encompass the changes over season This becomes the strength of the longitudinal method of study .
It can specify the development of a reliable phenomenon or fad thru its babyhood up until the time it disappears , maven downside though is that it required a lot of time and childbed to complete mint syndrome is caused by an abnormal mobile phone division of the twenty-first chromosome . The trouble occurs when there is extra communicable material from the verbalize chromosome and is trustworthy for the characteristic features and developmental problems of Down syndrome . Down syndrome has several symptoms or characteristics , most common of all are : shape seventh cranial nerve features , protruding tongue , gloomy head , upwardly lie eyes which are preposterous for the child s heathenish group , and unusually shaped ears . Down...If you motive to get a all-embracing essay, order it on our website:
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