Answers |Latest Version| Already Graded A+
Population ✔Correct Answer-collection of all possible subjects of interest
parameter ✔Correct Answer-numerical summary that describes the population
parameters describe the ✔Correct Answer-population
sample ✔Correct Answer-smaller (subset) of the population
statistic ✔Correct Answer-numerical summary that describes the sample
statistics describe ✔Correct Answer-the sample
longitudinal study ✔Correct Answer-looks at possible factors (variables) related to the
development of an outcome over a period of time
cross sectional study ✔Correct Answer-looks at possible factors (varibles) related to the outcome
at one specific point in time
in a longitudinal study data is collected ✔Correct Answer-at multiple points in time
in a cross sectional study data is collected ✔Correct Answer-comes from one point in time
prospective studies ✔Correct Answer-group or groups of individuals chosen or identified based on
some current exposure
retrospective studies ✔Correct Answer-group or groups of individuals chosen or identified based
on some outcome or past exposure
census ✔Correct Answer-measures the entire popualation
sample ✔Correct Answer-measures the subset of the population
bias ✔Correct Answer-tendency to overestimate or underestimate the true value
random sample ✔Correct Answer-sample that allows random chance to select subjects from the
population
biased sample ✔Correct Answer-samples that systematically miss a portion of the population
paired differences ✔Correct Answer-compared to own self
historical controls ✔Correct Answer-want to compare what you found in the sample to something
mean ✔Correct Answer-describes the center of measurements
variance ✔Correct Answer-describes the spread of measurements