Bio Scientific Methods

Expertimental Setup

• Used to test hypothesis

• Has an IV

Control Setup

• Used to compare and confirm findings with the expermiental set up

• Will not have an IV

Controlled Variables

• Factors that remain constant within both experiments

• Ensure validity (only 1 variable is tested in the experiment)

Accuracy

• How close the measurements are to the true value

• Improved by removing systematic errors (calibrating instruments)

Precision

• How closely two or more values agree with each other

Repeatability

• same method on identical test materials under the same condition

• Through having multiple trials

Reproducibility

• same method on identical test materials but under different conditions

• Having other labs attempt the experiment

Reliability

• The degree to which a test yields consistent results over repeated trials or assessments.

• It can be increased by using instruments that are less susceptible to random errors