Design of a Statistical Study
Data collection
Experimental Design
Sampling Techniques
Types of Data & LEvels of Measurement
100
Where the researcher does not influence the responses.
What is Observational Study
100
the use of a mathematical or physical model to reproduce the conditions of a situation or process
What is Simulation-
100
occurs when an experimenter cannot tell the difference between the effects of different factors on the variable.
What is Confounding Variable-
100
a count or measure of an entire population
What is Census-
100
consists of attributes, labels, or non-numerical entries.
What is Qualitative Data-
200
a researcher deliberately applies a treatment before observing the responses.
What is an experiment?
200
an investigation of one or more characteristics of a population
What is Survey-
200
a technique where the subjects do not know whether they are receiving a treatment or a placebo
What is Blinding-
200
account or measure of part of a population
What is Sampling-
200
consists of numerical measurements or counts.
What is Quantitative Data-
300
is applied to part of a population called a treatment group, and responses are observed.
What is Treatment
300
the number of subjects in a study, is another important part of experimental design.
What is Sample size-
300
the process of randomly assigning subjects to different treatment groups
What is Randomization-
300
is the difference between the results of a sample and those in a population
What is Sampling error-
300
qualitative data only
What is Nominal Level-
400
in which no treatment is applied.
What is Control Group-
400
the repetition of an experiment under the same or similar conditions.
What is Replication-
400
groups of subjects with similar characteristics
What is Blocks-
400
one in which every member of the population has an equal chance of being selected
What is Random sample-
400
qualitative or quantitative data can be arranged in order or rank
What is Ordinal Level-
500
a harmless, fake treatment, that is made to look like the real treatment.
What is Placebo-
500
the collection of all outcomes, responses, measurements, or counts that are on interest
What is Population-
500
where subjects are paired up according to a similarity
What is Matched-Pairs Design-
500
a sample in which every possible sample of the same size has the same chance of being selected
What is Simple Random Sample-
500
can be ordered, and meaningful differences between data entries can by calculated
What is Interval Level-
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