The endocrine component of the pancreas consists of islet cells (islets of Langerhans) that create and release important hormones directly into the bloodstream. Two of the main pancreatic hormones are insulin, which acts to lower blood sugar, and glucagon, which acts to raise blood sugar.
Variability is a measure of the spread of a data set. Learn more about the different measures of variability including the range, variance, and standard deviation, and how they are used in the field of Psychology.
third-variable problem. A third variable is any variable that is extraneous to the two variables being studied. Any number of other third variables may be responsible for an observed relationship between two variables.The third variable is an alternative explanation for the observed relationship between the variables.