The science of collecting, organizing, analyzing, and interpreting data in order to make decisions.
What is Statistics
100
This type of data consists of attributes, labels, or nonnumerical entries.
What is Qualitative Data.
100
This is the process of randomly assigning subjects to different treatment groups
What is randomization
100
A ________ is the use of mathematical or physical models to reproduce the conditions of a situation or process.
What is a simulation.
100
Statistics comes from the latin word status, meaning ______.
What is state
200
Consists of information coming from observations, counts, measurements, or responses.
What is Data
200
Data at this level are qualitative only, and are categorized by names, labels, or qualities.
What is Nominal level of measurement
200
This is the repetition of an experiment using a large group of subjects.
What is replication
200
An investigation of one or more characteristics of a population (often carried out by asking members of a population certain questions).
What is a survey
200
This type of data consists of numerical measurements or counts.
What is quantitative data
300
A numerical description of a population characteristic.
What is a parameter
300
This level of measurement can be ordered, and you can calculate meaningful differences between data entries. A zero at this level simply represents the position on a scale.
What is interval level of measurement
300
A _________ occurs when an experimenter cannot tell the difference between the effects of different factors on a variable.
What is a confounding variable.
300
A researcher observes and measures characteristics of interest of part of a population but does NOT change existing conditions.
What is an observational study
300
A technique where the subject does not know whether he or she is receiving a treatment or a placebo.
What is Blinding
400
The collection of all outcomes, responses, measurements, or counts that are of interest.
What is a population
400
Name the levels of measurement in order.
What is Nominal, Ordinal, Interval, Ratio
400
This occurs when there is a difference between the results of the sample, and those of the population.
What is a sampling error.
400
A harmless, unmedicated treatment, that is made to look like the real treatment.
What is placebo
400
A count or measure of an ENTIRE population.
What is census.
500
The branch of statistics that involves using a sample to draw conclusions about a population.
What is inferential statistics
500
This type of zero implies none.
What is an inherent zero
500
A _______ sample is a sample in which each members of the population is assigned a number, and then selected in intervals. For example, every 4th person.
What is a systematic sample
500
List the 6 guidelines to designing a statistical study.
What is Identify the variable, develop a plan for collecting data, collect, describe the data, interpret the data and make decisions, identify possible errors