Types Of Data
four levels of measurement
Design of statistical study
experimental design
sampling technques
100
What does quantitative data consist of?
consist of numerical measurements or counts.
100
Give an examples of nominal levels.
Types of shows televised by a network
100
What type of statistical study does the researcher not influence the
Observational study
100
What is a confounding variable
This occurs when an experimenter cannot tell the difference between the effects, or different factors on the variable
100
A _______ is a count of an entire population
census
200
What does qualitative data consist of?
consist of attributes, labels, or non numerical entries.
200
Give an example of Ordinal level.
Motion picture association of america ratings description.
200
A part of an experiment which no treatment is applied?
Control group
200
What technique can help control the placebo effect?
blinding
200
_______ is a count or measure of part of a population, and is more commonly used in statistical studies.
sampling
300
Name sets of data that use numbers?
Quantitative data
300
Give examples of interval level.
average monthly temperatures
300
A harmless, fake treatment, that is made to look real?
Placebo
300
What is the process of randomly assigning subjects to different treatment group?
randomization
300
The difference between the results of a sample and those of the population.
sampling error
400
Name sets of data that use words?
Qualitative data
400
Give examples of ratio level.
average monthly precipitation
400
The subjects in a treatment group and control groups are called what?
Experimental units
400
_______ are groups of subjects with similar characteristics
blocks
400
How many different sampling techniques are their?
6
500
The nature of the data you are working with will determine which _______ procedures can be used?
Statistical
500
name all 4 levels of measurement
nominal level, ordinal level, interval level, and ratio level
500
What is the goal of every statistical study?
To collect then use data to make a decision.
500
What is the repetition of an experiment under the same or similar conditions?
replication
500
A type of sample that often leads to biased studies and is not recommended is a _______?
convenience sample
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