The scientific method and research practices
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The Scientific Method and Research Practices. Why is Research Important?. Provides new advanced systems and technology in food and agriculture (USDA- REE ) Need to feed the world Research can “improve quantity, quality and sustainability” ( DuPont Agriculture). Types of Research.

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The Scientific Method and Research Practices

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The scientific method and research practices

The Scientific Method and Research Practices


Why is research important

Why is Research Important?

Provides new advanced systems and technology in food and agriculture (USDA-REE)

Need to feed the world

Research can “improve quantity, quality and sustainability” (DuPont Agriculture)


Types of research

Types of Research

Definition

  • Quantitative

    • Data includes measurements or counts

    • Standard scales

  • Qualitative

    • Descriptions


Steps of the scientific method

Steps of the Scientific Method


Types of variables

Types of Variables

Definition

  • Independent Variables

    • Altered or manipulated for the experiment

  • Dependent Variables

    • Respond during the experiment

  • Constants

    • Factors that are not changed during the experiment


Making your experiment v alid

Making your Experiment Valid

Definition

  • Control Group

    • Group Unchanged by researcher

    • Measure the influence of unanticipated

  • Multiple Trials


Hypothesis

Hypothesis

Definition

  • Prediction of the relationship between a independent and dependent variable in an experiment

  • Must use background research to form hypothesis

  • Accept or Reject after analyzing results


Forms of hypotheses

Forms of Hypotheses

If-Then

Non-directional


Hypothesis example

Hypothesis Example

Directional

If a plant is exposed to is green light, then the growth rate will increase.

Non-Directional

  • The growth rate of a plant will differ under green light.


Hypothesis example1

Hypothesis Example

Directional

If cattle are fed corn then the rate of gain will be greater than cattle fed grass.

Non-Directional

  • Rate of gain in cattle fed corn will differ from cattle fed grass.


Procedures and methods

Procedures and Methods

Definition

What are procedures?

The specific steps used to complete an experiment including the required materials


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