CH. 2 Key Terms Flashcards
observation
the action or process of observing something or someone carefully or in order to gain information.
hypothesis
a supposition or proposed explanation made on the basis of limited evidence as a starting point for further investigation.
prediction
taking a guess of something before it happens
experiment
a scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact.
variable
not consistent or having a fixed pattern; liable to change.
experimental group
the group of participants who are exposed to the independent variable.
control group
composed of participants who do not receive the experimental treatment.
data
facts and statistics collected together for reference or analysis
correlation
a mutual relationship or connection between two or more things.
statistics
a fact or piece of data from a study of a large quantity of numerical data.
mean
the average or the most common value in a collection of numbers
distribution
the action of sharing something out among a number of recipients.
probability
the extent to which something is probable; the likelihood of something happening or being the case.
sample
a small part or quantity intended to show what the whole is like.
risk
a situation involving exposure to danger.
model
a system or thing used as an example to follow or imitate.
conceptual model
a representation of a system
mathematical model
a description of a system using mathematical concepts and language.
value
the regard that something is held to deserve; the importance, worth, or usefulness of something.
decision-making model
he cognitive process resulting in the selection of a belief or a course of action among several possible alternative options.
