Question

An independent variable is



a.

directly changed by the experimenter.


b.

manipulated by changes to the dependent variable.


c.

a variable that is kept constant.


d.

a variable that is used as a control

Answer 1

c.
a variable that is kept constant

Answer 2

In the scientific terms we can say that a variable is an element,factor or feature which is liable for vary of it's numeric value.

There are mainly three types of variables , independent ,manipulated and dependent variable.

According to the question;

An independent variable is:

Ans: Option A , which can be directly changed by the experimenter