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SCIENTIFIC METHOD / EXPERIMENTAL DESIGN
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Scientific method and experimental design vocabulary and concepts.
Terms in this set (15)
Scientific Method
A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions.
Hypothesis
A possible explanation that is testable. Usually in the form of an "If...then..." statement.
Problem Statement
Defines purpose of research/guides your investigation
Research
Gather information on the problem using scientific publications; use the information to form a hypothesis
Controlled Experiment
An experiment in which only one variable is manipulated at a time.
Experiment
A set up where you change one variable at a time (independent variable) to see how it affects another variable that is measured (dependent variable).
Controlled Variable
A variable that is not changed during an experiment (Kept the same).
Independent Variable
The experimental factor that is changed; the variable whose effect is being studied
Dependent Variable
The experimental factor that is being measured; the variable that may change in response to manipulations of the independent variable
Data
Any pieces of information or values (numbers) acquired through observation or experimentation.
Conclusion
A summary that states if your hypothesis was correct or incorrect and what the investigation showed, based on observations and data.
Trial
A single repeat of an experiment or test.
Experimental Control
Making sure that only the independent variable changes between groups or trials of an experiment.
Scientific Theory
A scientific explanation of how the natural world works based on repeated support from experimentation.
Scientific Law
A "rule" that describes a pattern in nature or how the natural world works.
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Verified questions
PSYCHOLOGY
a. To which field of psychology does the largest number of psychologists belong? b. How does the work of experimental psychologists benefit psychologists in other fields? c. Why do you think there are so many specialties in psychology?
QUESTION
Humanistic psychologists often prefer to assess personality by a. having a person write out answers to questions. b. sitting down and talking to a person. c. getting a person to describe what he or she sees in ambiguous inkblots. d. having a person describe their dreams. e. putting a person in a stressful situation to see how he or she behaves under pressure.
QUESTION
Maylin has a negative attitude and is disrespectful of her peers. She is unhappy at work and has not been performing at her job as well as in the past. Unfortunately, Maylin blames her co-workers for mistakes that have been made and feels as if the world is against her. A. Explain how each of the following psychological concepts might explain Maylin's negative or unpleasant behavior. • Self-serving bias • Displacement B. Explain how each of the following psychological concepts might help Maylin become more postve in her daily life. • Self-actualization • Sublimation • Unconditional positive regard
QUESTION
People are more likely to disobey an authority figure when a. they are alone with the authority figure. b. the authority figure is male. c. the authority figure's request would cause harm to another person. d. they are in a group with more than three people. e. they have seen someone else disobey.
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a research procedure in which a variable is manipulated and the manipulations effect on another variable is observed is called an:
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The difference between an independent variable and a quasi-independent variable is that the quasi-independent variable lacks...?