Textbook Notes (368,124)
Canada (161,662)
Psychology (9,695)
PSYA01H3 (1,206)
Steve Joordens (1,058)
Chapter 2

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Department
Psychology
Course
PSYA01H3
Professor
Steve Joordens
Semester
Summer

Description
Chapter 2 PSYA01 Empiricism 實證論: the belief that accurate knowledge can be acquired through observation. Scientific method: a set of principles about the appropriate relationship between ideas and evidence. Theory: a hypothetical explanation of natural phenomenon. Hypothesis: a falsifiable(可被檢驗的)e prediction made by a theory. What three things make people difficult to study? 1, complexity, 2, variability, 3, reactivity (when ppl know they are being studied, they don’t always behave as they otherwise would do.) two ways to meet these challenges: methods of observation, methods of explanation. Operational definition: a description of a property in concrete, measurable terms. Electromyography (EMG): a device that measures muscles contractions under the surface of a person’s skin. Good measures have three properties: validity, reliability, and power. Validity: extent to which a measurement and a property are conceptually related. Reliability: the tendency for a measure to produce the same measurement whenever it is used to measure the same thing. Power: the ability of a measure to detect the concrete conditions specified in the operational definition. Demand characteristics: those aspects of an observational setting that cause people to behave as th
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