Stats quiz 1
Chaps 1-3
Chaps 1-3
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Lernkarten
obtaining numerical measurements
collection
organization of data into tables, graphs or charts so that logical and statistical conclusions can be manifested
tabulation or presentation
extracting from the given data relevant information
analysis
drawing conclusions
interpretation
step 1 of statistical analysis
defining the problem
step 2 of statistical analysis
collecting and assembling relevant information
step 3 of statistical analysis
conducting an original investigation of the problem
step 4 of statistical analysis
classifying the data
step 5 of statistical analysis
presenting the data
step 6 of statistical analysis
analyzing and interpreting the results
first introduced the word "statistics"
Achenwall
gambler who wrote the first known study of the principles of probability
Girotamo Cardano
dicovered the equation for normal distribution
De Moivre
applied the theory of probabilty to anthropological measurements and expanded the same principle o the field of psychology and education
father of modern stats
Adolf Quetelet
developed the use of percentiles and contributed the application of stats to heredity
Sir Francis Galton
worked with Galton to develop the theory of regression and correlation
Karl Pearson
develop methods for decision-making derived from smaller sets of data
William S. Gosset
developed Fisher's test used in the analysis of variance
Sir Ronald Fisher
a single figure that is representative of the general level of magnitudes of the items in a set of data
measure of central tendency or position or location
arithmetic average of all the scores
mean
most frequent score
mode
central value that divides the ordered data samples into 2
median
describes distance of the score from the median
measure of variability
distance from the middle
how far above or below from the mean
standard deviation
same as standard but square root is not taken
variance
distance between the highes and lowest
range
to describe group characteristics by collection of summarizing data
descriptive stats
to describe a population by studying a random sample
inferential stats
should come from a population with normal distribution
parametic stats
does not require any assumption
nonparametic stats
person-to-person method
direct or interview
written responses
indirect or questionnaire method
enforced by law
registration method
observe behavior
subjects cannot talk or write
observation method
determine cause and effect
experiment method
effect, criterion, result
dependent
cause, predictor, determinant or correlate, contolling
independent
variable being analyze
experimental var
var which is increase, reduced, added or removed
manipulated var
constant var
controlled
