Variables
Scales
Research
Research 2
Statistics
100
Continuous
What is a type of variable that can be divided into smaller units without limit.
100
nominal scale
What is a measurement scale where the categories are differentiated only by qualitative names.
100
operational definition
What is a procedure for measuring and defining a construct.
100
control condition
What is a condition where the treatment is not administered.
100
data
What are measurements or observations.
200
Dependent
What is the variable in an experiment that is observed for changes?
200
ordinal scale
What is a measurement scale consisting of a series of ordered categories. (First, second, third...)
200
population
What is the entire group of individuals that a researcher wishes to study.
200
experimental condition
What is the condition where the treatment is administered.
200
datum
What is a single measurement or observation and is commonly called a score or raw score.
300
independent variable
What is the variable that is manipulated by the researcher. (the treatment conditions)
300
interval scale
What is an ordinal scale where all the categories are intervals with exactly the same width.
300
sample
What is a group selected from a population to participate in a research study.
300
experimental method
What is a research method that manipulates one variable, observes a second variable for changes, and controls all other variables. The goal is to establish a cause-and-effect relationship.
300
descriptive statistics
Techniques that organize and summarize a set of data. Yield information regarding central tendency and dispersion.
400
quasi-independent variable
In a quasi-experimental or nonexperimental research study, what is the variable that differentiates the groups or conditions being compared. Similar to the independent variable in an experiment.
400
ratio scale
What is an interval scale where a value of zero corresponds to none.
400
pre–post study
Quasi-experimental and nonexperimental designs consisting of a series of observations made over time. The goal is to evaluate the effect of an intervening treatment or event by comparing observations made before versus after the treatment.
400
nonequivalent groups study
What is a research study in which the different groups of participants are formed under circumstances that do not permit the researcher to control the assignment of individuals to groups and the groups of participants are, therefore, considered nonequivalent.
400
statistic
What is a Characteristic that describes a sample.
500
variable
What is a characteristic that can change or take on different values.
500
NOIR
What is a mnemonic that stands for nominal, ordinal, interval, and ratio scales.
500
correlational method
What is a research method that simply observes two existing variables to determine the nature of their relationship.
500
correlational method
What is a research method that simply observes two existing variables to determine the nature of their relationship.
500
parameter
What is a characteristic that describes a population.
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