A Ph.D., or Doctor of Philosophy, is among the highest of degree levels and is sometimes considered the most difficult to complete because it requires candidates to write and defend a dissertation, take courses and pass several tests. It typically takes 5-6 years to fulfill the requirements needed for a Ph.D.tudents must first take advanced courses in their field for a few years, followed by a set of comprehensive exams. After this is accomplished, Ph.D. students produce a dissertation project, which can vary in its time to completion.
Children at least ten (10) years of age and not more than twelve (12) years of age shall be allowed to stay home alone for brief periods of time, but not after 9:00 pm. Children over twelve (12) years of age may be left home alone, but not overnight.
8 to 10 years-Should not be left alone for more than 1Â½ hours and only during daylight and early evening hours. 11 to 12 years-May be left alone for up to 3 hours but not late at night or in circumstances requiring inappropriate responsibility. 13 to 15 years-May be left unsupervised, but not overnight.16 to 17 years-May be left unsupervised (in some cases, for up to two consecutive overnight periods). It is important to note that no two children are alike, and parents must decide on a case-by-case basis what is best for their child.1 to 12 years-May be left alone for up to 3 hours but not late at night or in circumstances requiring inappropriate responsibility. 13 to 15 years-May be left unsupervised, but not overnight. 16 to 17 years-May be left unsupervised (in some cases, for up to two consecutive overnight periods).