Occurs when an experimenter cannot tell the difference between the effects of different factors on the variable.
What is a confounding variable
100
A count or measure of an entire population
What is a Census
100
______ consists of attributes, labels, or nonnumerical entries
______ consists of numerical measurements or counts
What is Qualitative and Quantitative data
100
_____ consists of information coming from observations, counts, measurements, or responses
What is Data
200
Occurs when a subject reacts favorably to a placebo when in fact the subject has been given a fake treatment
What is Placebo Effect
200
A count or measure of a part of a population, and is more commonly used in statistical studies
What is Sampling
200
Data at the _____ level of measurement are qualitative only. Data at this level are categorized using names, labels, or qualities. No mathematical computations can be made at this level
What is Nominal
200
______ is the science of collecting, organizing, analyzing, and interpreting data in order to make decisions.
What is Statistics
300
Technique where the subjects do not know whether they are receiving a treatment or a placebo
What is Blinding
300
The difference between the results of a sample and those of the population
What is a Sampling Error
300
Data at the _____ level of measurement are qualitative or quantitative. Data at this level can be arranged in order, or ranked, but differences between data entries are not meaningful
What is Ordinal
300
A ______ is a numerical description of a population characteristic
A ______ is a numerical description of a sample characteristic
What is Parameter, Statistic
400
Neither the experimenter nor the subjects know if the subjects are receiving a treatment or a placebo.
What is a Double-Blind Experiment
400
a sample in which every member of the population has an equal chance of being selected
What is a Random Sample
400
Data at the _____ level of measurement can be ordered, and meaningful differences between data entries can be calculated. At the interval level, a zero entry simply represents a position on a scale; the entry is not an inherent zero.
What is Interval
400
A _____ is the collection of all outcomes, responses, measurements, or counts that are of interest.
What is a Population
500
Process of randomly assigning subjects to different treatment groups
What is Randomization
500
a sample in which every possible sample of the same size has the same chance of being selected
What is a Simple Random Sample
500
Data at the _____ level of measurement are similar to data at the interval level, with the added property that a zero entry in an inherent zero. A ratio of two data entries can be formed so that one data entry can be meaningfully expressed as a multiple of another