For persons who combine a master's degree and a PhD at the same institution, 5 years seems to be a typical length of time to completion. With the AuD degree being so new, it is currently unclear how long a PhD will take after the AuD or the length of time to complete a combined AuD/PhD (research degree).et's assume that a PhD is finished in about 4 years. The first 2 years will include taking courses, many of which will be courses from outside the CSD department. The choice of course work varies by student but always includes several research methods and statistical analysis courses.
Answer   I think you start your first period when you are about 9-13 years old.I started my first period when I was 10 years old and I was in 4th grade during that time sâ¦o I don't think I started my period too early. 6 people found this useful. CatRox.
1 Answer. 0. Periods happen to women from menarche, the beginning of having periods, until menopause, which is defined as no period for 1 year. So if a woman begins her periods at age 13 she could have periods until age 50 or for 37 years. Most women have a period every month or every 28 days. Some women have their period every 26 days and other women have their period at longer intervals, up to every 34 days. What is important is that the period is regular and that it starts every month around the same time and within 5 days of the last time.