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Statistics
Research Methods
Scales of Measurement
Variables
Summarizing Data
100
This is the group about which scientists will generalize.
What is a population?
100
This uses methods and procedures to make observations.
What is an experiment?
100
A number is assigned to represent something or someone.
What are Nominal Scales?
100
This variable can be measured in fractional units.
What is a Continuous Variable?
100
A measure of spreading scores that involves distribution and range.
What is Variability?
200
A set of individuals, items, or data selected from a population of interest.
What is sample?
200
In order to be called an experiment, these three things must be done.
What are manipulation, randomization, and comparison control?
200
A procedure of converting categorical variable to a numeric value.
What is coding?
200
This variable is measured numerically.
What is a Quantitative Variable?
200
A difference between the largest and smallest values.
What is a Range?
300
A characteristicthat describes a population.
What is a population parameter.
300
A research study that is structured, but lacks a comparison/control group.
What is aQuasi-Experimental Method?
300
A measurement that ranks.
What is an Ordinal Scales?
300
Often referred to as a label, this variable is non-numeric.
What is a Qualitative Variable?
300
This is computed when all scores in a population are recorded.
What is a Population Variance?
400
Procedures that summarize, organize, and make sense of a observations.
What is descriptive statistics?
400
A method that examines the relationship between variables, by reviewing pairs of scores.
What is a Correlational Method?
400
A measurement that has no true zero.
What is a Interval Scale?
400
This variable is measured along a continuum.
What is a Discrete Variable?
400
This is the difference of each score from its mean.
What is a Deviation?
500
A procedure allowing researchers to generalize sample observations of a larger population.
What is Inferential Statistics?
500
A procedure that ensures that participants have an equal opportunity to be assigned to a particular group.
What is a random assignment?
500
A measurement that has a true zero.
What is a Ratio Scale?
500
These variable are often measured in behavioral research.
What are Qualitative Variables.
500
This is always positive, describes quantitative data, most informative when reported with the mean, and is affected by score distribution.
What is a standard deviation?