Letter-cancellation practice produced only small gains and some losses in parts-of-speech cancellation, while the unpracticed control group gained on all parts of speech¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r1 · q2
Currency · newest study 1909 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? After 14 days of letter-cancellation practice, the practice group showed a loss in speed for pronouns and adverbs and only small gains for nouns, verbs and prepositions. → Linus W. Kline 1909 q2 i? The control group, which received no letter practice, showed a distinct gain in speed for all parts of speech between the two test periods. → Linus W. Kline 1909 (2)

Evidence¶

Linus W. Kline 1909¶

Linus W. Kline, Ph.D. (1909). Some Experimental Evidence in Regard to Formal Discipline. The Journal of Educational Psychology. https://www.google.com/search?q=%22Some+experimental+evidence+in+regard+to+formal+discipline%22+Kline

q2 · i? · causal · r1

In the first study, 9 adults practised cancelling e's and t's for 14 days; Table 1 compares first- and second-period averages. The practiced group showed "a loss in speed for pronouns and adverbs" after practice.

"the practiced group showed in the second period a loss in speed for pronouns and adverbs, and only a relatively small gain for nouns, verbs and"

Linus W. Kline 1909 (2)¶

Linus W. Kline, Ph.D. (1909). Some Experimental Evidence in Regard to Formal Discipline. The Journal of Educational Psychology. https://www.google.com/search?q=%22Some+experimental+evidence+in+regard+to+formal+discipline%22+Kline

q2 · i? · causal · r1

Same two-period comparison for the nine-member control group, which struck out no letters between periods. The article reports "a distinct gain in speed for all parts of speech" for this group.

"while the control group showed a distinct gain in speed for all parts of speech."

Discussion¶

Related Claims¶

• Practice produced large within-task speed gains: averaging 89 per cent for letter cancellation and over 200 per cent for digit-for-letter substitution — related
• A letter-cancellation practice group outperformed a control group in the first parts-of-speech test period — related
• Practice in writing code produced practically no transfer to digit-letter substitution: the practiced group gained 12%, two percent less than the unpracticed control group. — related
• The practiced group exceeded the control group on three of five tests (complex dotting, number code, letter code translation) by 5, 9, and 15 percent respectively, but did no better on digit-symbol substitution and slightly worse on digit-letter substitution. — related
• Practice in substituting digits for letters transferred positively to writing symbols for digits but interfered with writing digits for symbols — related
• Where identical elements exist in two situations, training in one produces positive transfer to the other — related