0a438a4649
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
36 lines
1.6 KiB
Plaintext
36 lines
1.6 KiB
Plaintext
==============================================================================
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LOG-DAY MODEL + COHEN'S f + POWER -- boxa_a2_d0_5 [metric: # successes (count)]
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==============================================================================
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model: behavior ~ stim + log(day) + stim:log(day) + (1|rat) (behavior = # successes (count))
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log(day) uses 1-indexed training day (our day 0 = paper "Day 1")
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observed groups: stim n=3, control n=4 nrep=120, alpha=0.05
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--- fitted on real data ---
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stim x log(day) interaction: F(1,38)=4.320 p(resid)=0.04447 p(Satt)=0.04382 (df=42)
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honest per-animal random slope (log-day): F(1,10.2)=3.63 p=0.0853
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Cohen's f (interaction, partial eta^2=0.032) = 0.181 (small-medium; f: .10 small, .25 medium, .40 large)
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--- power simulation (log-day ground truth: stim:logday=+15.16, ratSD=0, resSD=14.15) ---
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true stim:log(day) = +15.16 (100% of observed)
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N/group | per-animal power | LME power
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------------------------------------------
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3 | 0.22 | 0.51 <- observed
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5 | 0.55 | 0.68
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8 | 0.81 | 0.85
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12 | 0.95 | 0.97
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16 | 1.00 | 0.99
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24 | 1.00 | 1.00
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true stim:log(day) = +7.581 (50% of observed)
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N/group | per-animal power | LME power
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------------------------------------------
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3 | 0.08 | 0.23 <- observed
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5 | 0.17 | 0.23
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8 | 0.24 | 0.27
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12 | 0.42 | 0.47
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16 | 0.55 | 0.58
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24 | 0.85 | 0.85
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Read per-animal as the honest power; LME matches the paper's power code (optimistic).
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