विकास का 'अधोगामी' (प्रॉक्सिमो-डिस्टल) सिद्धांत यह सुझाव देता है कि विकास किस ओर बढ़ता है?

Which growth pattern explains that development proceeds from central parts of the body to peripheral parts?

Which factor is considered most influential in determining a child's overall development?