Kinesiology vocab Flashcards
variable
any factor that can be measured, controlled, or changed in a scientific study.
Dependent variable
the main outcome of interest. It can be observed or the result of experimental manipulation.
Independent variable
the main “exposure” variable that is observed or controlled (treatment)
Statistical Significance
the probability that the results of a study would occur by chance due to an actual effect or association.
Experimental group
participants in an experiment who receive the treatment (process or intervention) under investigation.
Control Group
a group of individuals who are similar in all possible respects to the experiment group, but do not receive the treatment. Results in the experimental group are compared to those in the control group.
Blind experiment
an experiment in which the subjects do not know whether they are members of the experimental or the control group. in
Placebo
a shame “treatment” with no therapeutic effect, such as harmless sugar pill, often used in scientific studies. Placebos are frequently used for control group participants in experimental studies.
Instruments
Tools used to collect and quantify the data, such as skin fold calipers, heart rate monitors, metabolic carts, and questionnaires.
Measurement
The process of quantifying the physical qualities of objects and individuals such as age, weight, height, density, and so on.
Evaluation
the process of using measures to develop evidence-based practices about policies, performances, processes, and so on
Randomization
a statistical process (like flipping a coin) wherein subjects in an experiment have an equal opportunity to be assigned to various experimental (or control) groups.
Causality
the degree to which an event ( cause) results in an outcome. In kinesiology and other areas of science, causality refers to the strength of the evidence that one conditions causes another.
Validity
The ability of an instrument to measure what it is supposed to measure. For example, does your performance (time) on the one-mile rune test actually reflect your cardiorespiratory fitness level?
Reliability
The ability of an instrument to yield consistent results when used repeatedly to measure the same thing.