PSYC 2005 Exam 1 Study Questions And Answers 100% Verified.
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Course
PSYC 2005
Institution
PSYC 2005
descriptive statistics - correct answer psychologists use this to summarize and describe a group fo numbers from a research study
inferential statistics - correct answer we use this to draw conclusions and make inferences ...
PSYC 2005 Exam 1
descriptive statistics - correct answer psychologists use this to summarize and
describe a group fo numbers from a research study
inferential statistics - correct answer we use this to draw conclusions and make
inferences that are based on the numbers from a research study but go beyond the numbers
equal interval variable - correct answer variable in which numbers stand for
approximately equal amounts of what is being measured (type of numeric variable)
rank order variable (ordinal variable) - correct answer variable in which values are
ranks (type of numeric variable
nominal variable (categorical variable) - correct answer variable with values that are
categories
levels of measurement - correct answer types of underlying numerical info provided
by a measure, such as equal interval, rank order, and nominal
discrete variable - correct answer variable that has specific values and cannot have
values between those specific values
continuous variable - correct answer variable for which, in theory, there are infinite
numbers of values between any two values
frequency table - correct answer ordered listing of number of individuals having
each of the different values for a particular variable
, grouped frequency table - correct answer frequency table in which number of
individuals is given for each interval of values
histogram - correct answer barlike graph of a frequency distribution in which the
values are plotted along horizontal axis and height of each bar is the frequency of that value
frequency distribution - correct answer pattern of frequencies over the various
values; what a frequency table, histogram, or frequency polygon describes
unimodal distribution - correct answer frequency distribution with one value clearly
having a larger frequency than any other
bimodal distribution - correct answer frequency distribution with two
approximately equal frequencies, each clearly larger than any of the others
multimodal distribution - correct answer frequency distribution with two or more
high frequencies separated by a lower frequency
rectangular distribution - correct answer frequency distribution in which all values
have approximately same frequency
symmetrical distribution - correct answer distribution in which pattern of
frequencies on left and right side are mirror images of each other
skewed distribution - correct answer distribution in which scores pile up on one side
of the middle and are spread out on other side/distribution that is not symmetrical
floor effect - correct answer situation in which many scores pile up at the end of a
distribution because not possible to have any lower score
ceiling effect - correct answer situation in which many scores pile up at the high end
of a distribution because not possible to have a higher score
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