Practice increases observers' ability to reproduce briefly exposed visual material, with final-over-initial gains ranging from 6% to 44% (average 22%).¶

Claim · All claims
Evidence · 1 study · causal r1 · q2
Currency · newest study 1910 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Percentages correct on first reproduction were considerably higher in the final than the initial period for all observers and all kinds of material, with gains from 6% to 44%, average 22%. → Foster 1910

Evidence¶

Foster 1910¶

Foster, W. S. (1910). The Effect of Practice upon Visualizing and upon the Reproduction of Visual Impressions. The Journal of Educational Psychology. https://doi.org/10.1037/h0075685

q2 · i? · causal · r1

Small-n laboratory study of three trained observers across about thirty series each; Table I reports period averages of percent correct and repetitions. The results section states gains "from 6% to 44%; average 22%"; no standardized effect size is printed.

"The percentages for all O's and for all kinds of material are considerably higher in the final than in the initial period. Gain in efficiency ranges from 6% to 44%; average 22%"

Discussion¶

Related Claims¶

• Practice gains are greater for nonsense material (average final gain 28%) than for sense-material (average final gain 10%). — related
• Practice effects in visual reproduction are specific: they transfer to new conditions only in proportion to identical ability-conditioning factors. — related
• Systematic practise gives little warrant for markedly improving adults' quick visual perception; the slight poetry gain is attributed to familiarity with the poem — related
• Practise has a very slight effect on the range of attention, explicable by habituation and grouping tricks rather than any expansion of the range itself — related
• Retroactive inhibition fails to appear when memorized syllables are merely recognized rather than actively reproduced — related