Data
Sampling
Bias
Variables/ Study
Random
100
data obtained from first hand source
What is a primary data
100
The distance between points at which measurements are taken or the time which elapses between measurements
What is sampling interval
100
causing some members of the population to be less likely to be included than others
What is sampling bias
100
Variables that have are measured on a numeric or quantitative scale
What is a quantitative variable
100
A tool used to help organize related topics and generating ideas about them and related sub-topics
What is mind map
200
data collected from someone other than the user
What is secondary data
200
a subset of individuals (a sample) chosen from a larger set
What is simple random sampling
200
occurs in statistical surveys if the answers of respondents differ from the potential answers of those who did not answer
What is non response bias
200
Variables with no natural sense of ordering. They are therefore measured on a nominal scale.
What is a qualitative variable
200
individuals part of the same group being studied
What is a population
300
Type of data that is usually associated with some sort of physical measurement.
What is continuous data
300
sampling a fixed percent of the population
What is systematic sampling
300
respondents answer survey the way the think the survey wants them to, not by their beliefs
What is response bias
300
An amount that has unlimited set of values
What is a variable
300
an official calculation of a total population or class of things
What is a census
400
if there are only a finite number of values possible or if there is a space on the number line between each 2 possible values.
What is discrete data
400
is a method of sampling from a population.
What is stratified sampling
400
Ex. The survey interviewers asking about deaths were poorly trained and included deaths which occurred before the time period of interest.
What is measurement bias
400
Form a class of research methods that involve observation of all of a population, or a representative subset, at one specific point in time
What is cross sectional study
400
is a complex form of cluster sampling
What is multi stage sampling
500
is a sequence of data points, measured typically at successive points in time spaced at uniform time intervals
What is time series data
500
population organized into groups, random sample of the groups would then be chosen
What is cluster random sampling
500
when one type of respondent is overrepresented because groupings of different sizes are polled equally
What is household bias
500
a cor relational research study that involves repeated observations of the same variables over long periods of time
What is a longitudinal study
500
process of removing all or part of a specimen for analysis, where the process of analysis is destructive to the sample
What is destructive sampling
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