Chapter 2: Methods in Psychology Flashcards
Empiricism
Belief that accurate knowledge can be acquired through observation
Scientific Method
Suggests the best way to learn is to develop theories, derive hypothesis from them and gather evidence to modify theories
Theory
an idea that explains or solves a problem
Hypothesis
A falsifiable prediction made by a theory
Empirical Method
Set of rules/techniques for observation
Observation
Use ones senses to learn about the event or object
Measurement requires two things:
Definition and Direction
Operational Definition
Description of a property in its concrete, measurable terms
Reliability
Tendency for an instrument to produce same measurement when used again and again
Power
An instruments ability to detect small magnitudes of the property
A good instrument requires two things:
power and ability
Demand Characteristics
aspects in an observational setting where people tend to behave as they think someone else wants or expects
Scientists avoid demand characteristics by using Naturalistic observation, which is:
Naturalistic Observation is a technique for observing people without causing attention
Allowing people to participate in an experiment anonymously and privately is called:
Privacy and Control
Experimental Technique “Unawareness” is:
Making sure the people being observed are unaware of the true purpose of the observation
Observer Bias
Expectations can influence observations and expectations can influence reality
When the true purpose of the observation is being hidden from the observer and the person being observed
Double-Blind Observation
Frequency Distribution
Shows every measurement and provides picture of those measurements
When the frequency of measurements is highest in the middle and decreases symmetrically in both directions
Normal Distribution