Considering this, what is systematic variance?
It’s the effect of the manipulation of the Independent Variable. It’s the systematic differences between the control and the experimental group. It’s the amount of variability among scores due to chance or extraneous variables.
Furthermore, what is a source of variability? Sources of time-dependent variability. Variability is the tendency of the measurement process to produce slightly different measurements on the same test item, where conditions of measurement are either stable or vary over time, temperature, operators, etc.
Thereof, what is systematic and unsystematic variance?
unsystematic variance. the haphazard or random fluctuation of data for individuals over time. It is one of two types of variance identified in research, the other being systematic variance arising from the effects of the independent variables studied.
How can you reduce variability in an experiment?
There are three ways in which inter-individual variation can be reduced.
- By choosing animals of similar weight and age, eliminating clinical or sub-clinical infection and providing a non-stressful environment.
- By controlling the genetic variation using inbred strains (when using mice or rats).