Scientific approach Two forms: Discovery science (descriptive) Hypothesis-driven science (specific)

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Presentation transcript:

Scientific approach Two forms: Discovery science (descriptive) Hypothesis-driven science (specific)

Discovery science Finds general patterns (behavior, structure). Makes correlations (climate to adaptations). Describes Life (human genome project, mammals). INDUCTIVE REASONING: From a large number of observations to a specific conclusion. Happens before a particular question is asked

Examples of Discovery Science: DNA analysis Human genome project Climate Models Nuclear Reactions Impacts of a volcano

Hypothesis-driven science Is a formal process of inquiry that isolates variables (control, independent variable, response, dependent variable). The question is asked first. Hypothesis is based on previous knowledge. Hypothesis comes BEFORE the actual experiment and observation. DEDUCTIVE REASONING: From general observations to a specific expected results. Follows a formal process.

Hypothesis-driven Science SCIENTIFIC METHOD PRIOR KNOWLEDGE/OBSERVATIONS STATE A QUESTION/PROBLEM STATE HYPOTHESIS PREDICTION BASED ON: POPULATION TESTED EXPERIMENTAL GROUP(S) CONTROL GROUP(S)

DESIGN YOUR EXPERIMENT POPULATION SIZE EXPERIMENTAL GROUP(S) CONTROL GROUP(S) DEPENDENT VARIABLE INDEPENDENT VARIABLE MATERIALS, PROCEDURE, DURATION DATA COLLECTION DATA ANALYSIS CONCLUSION INTERPRET RESULTS SUMMARY OF DATA ANALYSES RELATION TO HYPOTHESIS (+ - o) CRITIQUE EXPERIMENTAL DESIGN

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