Chapter 11 ● Performance- the behavioral act of executing a skill at a specific time and in a specific situation ● Learning- change in the capability of a person to perform a skill; it must be inferred from a relatively permanent improvement in performance as a result of practice or experiences ● Stability- the influence on skill performance of perturbation, which are internal or external conditions that can disrupt performance ● Performance curve- line graph describing performance in which the level of achievement of a performance measure is plotted for a specific sequence of time or trials; the units of the performance measure are on the Y-axis and the time units or trials are on the X-axis ● Retention test- test of a practiced skill that a learner performs following an interval or time after practice has ceased ● Transfer test- test in which a person performs a skill that is different from the skill he or she practiced or performs the practiced skill in a context or situation different from the practiced context or situation ● Performance plateau- while learning a skill, a period of time in which the learner experiences no improvement after having experienced consistent improvement; typically, the learner then experiences further improvement with continued practice Chapter 12 ● Cognitive stage- the first stage of learning in the Fitts and Posner model; the beginning or initial stage on the learning stages continuum ● Associative stage- the second stage of learning in the Fitts and Posner model; an intermediate stage on the learning stage continuum