Chapter 1
Chapter 1: Reading For Meaning In Science
Course: Ged Test Prep
Subject: Science
Chapter: Chapter 2 Designing And Interpreting Science Experiments
Science Investigations
What is experimental design?
Experimental design refers to the scientific process of objectively undertaking an experiment in a controlled way to conclude the hypothesis. When experimenting, the researcher manipulates the independent variable to measure its influence on one or more dependent variables.
Key Principles of Designing a Science Experiment
The key principles of science investigations include:
- Defining the research question and variables
- Developing hypothesis
- Designing the experiment and assigning subjects
- Data collection (Measure the dependent variable)
- Data analysis and conclusion
The research method procedure is summarized in the diagram below;
Science Research Method
The above steps are discussed below;
Step 1: Research question and Defining variables
The first step in experimenting is to identify an issue or topic of concern from which the research question is developed. It is followed by the process of defining the study variables.