To design a good experiment,an investigator must consider all variables that might affect the outcome.What is a variable
A)the record of all the observations
B)everything that a scientist cannot control
C)an outcome that will result if the hypothesis is true
D)anything that can change for the purpose of the experiment

Question

Quizplus · Accepted Answer

A variable is anything that can change for the purpose of the experiment. In order to design a good experiment, it is important to consider all variables that might affect the outcome. This includes both independent variables (those that are purposely manipulated by the researcher) and dependent variables (those that are measured to determine the effect of the independent variable). Controlling variables is also important to ensure that the results are valid and reliable.

To Design a Good Experiment,an Investigator Must Consider All Variables