Clinical Epidemiology & Abnormality

Question 1

describe the uneven/skewed distributions & the mean and median of both

Answer 1

Question 2

describe validity (accuracy) vs reliability

Answer 2

• validity (accuracy): extent that the measurement represents what it is supposed to
• reliability (consistency, precision, reproducability): extent to which repeated measurements are similar

Question 3

describe regression to the mean

Answer 3

• natural tendency for a variable to change with time and return towards population average
  
  • e.g. blood pressure