Scientific Investigation Skills
The chapter emphasizes the importance of designing experiments by identifying variables, controls, and ensuring reliability and validity in research. It covers data collection and analysis techniques, the significance of various graph types for biological data representation, and the elements of writing lab reports and internal assessments. Each section integrates practical guidelines and examples to support effective experimental design and reporting.
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Sections
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What we have learnt
- A well-defined research question and hypothesis are essential for guiding experiments.
- Understanding the role of independent, dependent, and controlled variables is critical in experimentation.
- The reliability and validity of results can be enhanced through rigorous methodology and appropriate statistical analysis.
Key Concepts
- -- Research Question
- A focused and testable question that directs an investigation, clearly mentioning independent and dependent variables.
- -- Hypothesis
- A predictive statement expected to outline the relationship between variables based on scientific reasoning.
- -- Independent Variable (IV)
- The variable that is purposely manipulated in an experiment.
- -- Dependent Variable (DV)
- The variable being measured or observed, which responds to changes in the independent variable.
- -- Reliability
- The degree to which consistent results are obtained in an experiment.
- -- Validity
- The extent to which an experiment accurately measures what it intends to measure.
Additional Learning Materials
Supplementary resources to enhance your learning experience.