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Variables and Experimental Design

Variables and Experimental Design

Relationship between Independent, Dependent, and Control Variables

A successful biological investigation begins with clear variables. The independent variable is the factor you deliberately change. The dependent variable is the factor you measure to see how it responds.

Practical skills Lesson

  1. A Level
  2. /Biology
  3. /Practical skills

Step-by-step lessons on OCR A A Level Biology Practical skills. Each one builds up to exam-style questions. Build a strong foundation in cell biology and biochemistry early on, since later topics on genetics, ecology and physiology all draw on these core concepts.

Lessons