Chapter 1, Problem 7MCQ

Summary Introduction

Introduction:

An experiment is the main base for scientists to check the many theorem or hypotheses. Scientists do some test to find out how nature works and also, they design an experiment to check for cause and effect relationships to that particular experiment. The following things are very important to design an experiment namely sample size, variables, controls, and statistical analysis.

Here, variables are considered as the things that are “changing in an experiment”. A variable is any condition or factor that can happen in differing whole effect or form. Normally, an experiment consists of many types of variables such as standardized variable, independent variable, dependent variable, and control variable.