basic statistical terms Flashcards
refers to the techniques by which data are collected, organized and interpreted
statistics
quantity, numbers, data, height weight
quantitative data
gender religion, not numbers
qualitative data
branch of mathematics that deals with obtaining data in psychology
psychological statistics
complete set of individuals
population
subset of population
sample
any property or characteristics of some event that may have different values depending on conditions
variable
manipulated by the investigator
independent variable
experimental group
predictor variable
determine the effect of IV
dependent variable
control group
criterion variable
measurements that are made on the subjects
data
original form of data
raw data
arranged or manipulated data
array
number calculated in sample data
statistic
number calculated in population
parameter
cannot determine causality
observational research
obtain accurate information
naturalistic observation
conducted on sample to estimate the level
parameter estimation
focuses attention on two or more variables to determine whether they are related
correlational studies
attempt to determine whether changes in one variable cause changes in another variable
true experimental research
techniques that are used to describe or characterize variables
descriptive statistics
involves techniques that use the obtained sample data to infer to population; drawing conclusions about the population
inferential statistics
firsthand information
primary source
taken for other’s works
secondary source
