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. 2020 Aug 3;14(3):598–607. doi: 10.1007/s40617-020-00465-4

Table 7.

Multiplier Calculations of Lucy’s Math Facts Acquisition

Measure Multiplier Calculation Multiplier Value Change Classification
Target A to Target B
Celeration (×1.2) ÷ (×1.2) ×1.0 Unacceptable
Base frequency (24) ÷ (16) ×1.5 Robust
Bottom frequency (24) ÷ (16) ×1.5 Robust
Top frequency (52) ÷ (52) ×1.0 Unacceptable
Bounce (×1.7) ÷ (×1.5) ÷1.13 Unacceptable
Target B to Target C
Celeration (×1.2) ÷ (×1.2) ×1.0 Unacceptable
Base frequency (52) ÷ (24) ×2.2 Massive
Bottom frequency (40) ÷ (24) ×1.7 Robust
Top frequency (52) ÷ (52) ×1.0 Unacceptable
Bounce (×1.5) ÷ (×1.3) ÷1.15 Unacceptable