Research Methods.pptx - Do Now Take out your notes and a writing utensil The Scientific Method and Description The Scientific Method Psychologists use

Research Methods.pptx - Do Now Take out your notes and a...

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The Scientific Method and Description Do Now: Take out your notes and a writing utensil
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The Scientific Method Psychologists use the scientific method to support their scientific attitude. It is a self-correcting process using observation and analysis to evaluate ideas.
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How does a theory advance science? What is a theory? an explanation using an integrated set of principles that organizes observations and predicts behaviors or events So for instance… If we observe over and over that a classmate who gets plenty of sleep is usually the one with the right answer… we form a principle that sleep must improve memory.
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TRY IT What theories do you have about…. …how exercise relates to stress? …the way caffeine impacts memory? …how smiling impacts mood?
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How does a hypothesis advance science? What is a hypothesis? a testable prediction, often implied by a theory So for instance… To test our theory of sleep’s effects on memory, our hypothesis might be that when sleep deprived, people will remember less from the day before .
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What is the difference between a theory and a hypothesis? theory using our observations to explain behavior hypothesis predictions about behavior that can be tested
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What comes next? From theory to hypothesis to… …research. Remember.. The rat is always right. The results of our experiment will either support our theory or lead us to revise or reject it.
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Let’s consider this hypothesis: When sleep deprived, people will remember less from the day before. What do we mean by sleep deprived ? 2 hours fewer than usual? No sleep at all for a week? How will we know someone “ remembers less ”? Less than what? Less than whom?
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What is an operational definition? A carefully worded statement of the exact procedures (operations) used in a research study. For example, human intelligence may be operationally defined as what an intelligence test measures. The variable would then need to be quantified…so in this instance, human intelligence would be the score on an intelligence test.
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What is an operational definition for our hypothesis?
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