Experimental Design
This video explains how experimental designs are used in research. Some research uses observation, case studies, and survey methods to answer a research question; however, these methods are unable to provide information about cause and effect. To go beyond gathering information and isolating trends and move toward the question of cause and effect, experiments must be conducted. Experiments utilize procedures based on the scientific method. There needs to be an initial hypothesis to guide the experiment.
After you've watched the video, click the link below to answer questions about what you've learned.