2011年10月9日 星期日

傾向達到plateau標準

Explanation of a plateau pattern (stabilization) of practice effect:Pashler (1991) "Assume further that this trace has a negatively accelerated decay function (i.e., it decays rapidly at first, then more and more slowly). Suppose also that it never completely decays away (i.e., it approaches a very small but nonzero asymptote)."

學習效應"穩定形式"之中文解釋:在使用評估工具測量多次後,學習效應值會越來越低,數值會越來越小,為趨近0(但不會為0)的斜率曲線。

於4次再測時間點,傾向達到學習效應plateau之標準
1. 連續兩次以上之Cohen's d數值都在下降(例如:Time 1-2之Cohen's d比Time 0-1之Cohen's d小,Time 2-3之Cohen's d比Time 1-2之Cohen's d小)。
2. 連續3次時間點與3次中的第一個時間點之paried t-test都不顯著。(例如:Time 1-2和Time 1-3之paired t-test)

達成第一個標準後,才考慮第二個標準。

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