Characteristic of a scale of measurement where the individual units possess the qualities of greater than, equal to, or less than.
The effect of one variable on another without any other variables or subgroups involvement.
to Freud, the story-like superficial content of a
dream, often representing only the daily activities
and little underlying unconscious material.
Theorist most famous for the development of the
Hierarchy of Needs.
due to the natural process of aging as determined
by your genetics
measure of central tendency determined by adding all scores together and dividing by the number of scores. Often referred to as the statistical average.
of Central Tendency
average (see Mean, Median, and/or Mode)
Categories of data based on their numerical characteristics (See Ratio, Interval, Ordinal, and Nominal Scales)
measure of central tendency that uses the middle most
occurring score in a distribution (the score that occurs at
exactly the 50th percentile).
of the brainstem that controls vital
life-sustaining functions such as heartbeat,
breathing, blood pressure, and digestion.
Error in research that results from subjects recalling previous testing and applying that knowledge to current testing.
curve or distribution that has a balanced amount of variance so that is resembles a normal curve.
The statistical procedure used to combine numerous and independent research results into one study. Each research study becomes one subject in the meta-analysis.
Multiphasic Personality Inventory, 2nd. Edition
test utilizing 567 items which have been
empirically derived to measure a variety of
Minnesota Multiphasic Personality Inventory, 2nd.
measure of central tendency that uses the most frequently
occurring score. A distribution with two or more scores that are equal and occur most frequently is called multi-modal.
through the imitation or observation of others.
Subject drop-out in a research study.
Mortality becomes a problem when a disproportionate drop out rate occurs between two or more groups (Example: 30% of males drop out of group one while only 2% of males drop out in group two, resulting in uneven groups).
The process that energizes and/or maintains
states that provide direction for one's
A correlational technique used when there is one X and two or more Y. (Example:
the correlation between age and (math and English