Chapter 1L Flashcards
Accuracy
Degree of measurement’s close to the quanity’s actual value
barometric pressure
Pressure exerted by ambient air
central tendency
Score that best represents all scores collected for a group
dependent variable
Effect or yield of the independent variable.
displacement
Legnth that an object moves in a straight line between two points.
distance
total legnth that an object travels (may or may not be in a straight line)
energy
Capacity to do work
field/laboratory test
Test that can be completed in either a field or a laboratory setting
force
Mass multiplied by acceleration
field test
Test completed in a field setting
independent variable
variable that is manipulated
laboratory test
Sophisticated test that must be conducted in a laboratory setting
mass
Measure of matter that constiuteess an object; expressed in kg.
mean
Average score of a sample
median
middle score of a sample
mode
most frequent score in sample
normative data
placement within a population; also referred to as norms or norm data
power
Rate at which work can be performed.
precision
Degree to which a test is reproducable with nearly the same value
range
Distance beween end points in the group of scores
relative humidity
Amount of water or percent saturation in ambient air
reliability
repeatability of a measure
speed
scalar quanity generally considered to be how fast a body is moving; calculated by dividing distance covered by time
standard
desirable or target score
standard deviation
Measure of variability that shows variation or dispersion from the mean
validity
Accuracy of a measure
variable
a characteristic
variability
spread of a data set
velocity
vector quantity calculated by dividing displacement by time
wet-bulb globe temperature (WBGT)-
measure of temperature that estimates cooling capacity of the surrounding environment
work
Force times the distance through which it acts
