The Yerkes-Bridges Point Scale scoring method fails entirely to accomplish its stated purpose of bringing out the full value of the test material.¶

Claim · All claims
Evidence · 1 study · theoretical r2 · q1
Currency · newest study 1917 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q1 i? The Point Scale method of giving partial credit fails to use the full value of test data as its authors claimed it would. → ARTHUK S. OTIS (Stanford University) 1917

Evidence¶

ARTHUK S. OTIS (Stanford University) 1917¶

ARTHUK S. OTIS (Stanford University). (1917). A Criticism of the Yerkes-Bridges Point Scale, with Alternative Suggestions. The Journal of Educational Psychology, Vol. VIII, No. 3. https://eric.ed.gov/?q=Otis+criticism+Yerkes-Bridges+point+scale

q1 · i? · theoretical · r2

Theoretical argument in the article's introduction. Otis contrasts the Point Scale's avowed purpose, that it "brings out the full value of the test material without increasing the expenditure of time and energy," with his judgment that its scoring method fails entirely to accomplish that purpose. The article offers a reasoned critique rather than a data test.

"In the opinion of the writer, however, the method used in scoring with the Point Scale fails entirely to accomplish the purpose sought."

Discussion¶

Related Claims¶

• Arbitrarily assigned point values in the Yerkes-Bridges scale yield implausible growth-rate results, such as intellectual ability increasing more than fifty per cent during the fourth year and only approximately fifteen per cent during the seventh. — related
• In the Yerkes-Bridges alteration of the Binet Scale, equal point increments are assigned to digit-span steps whose growth intervals, as placed in the Binet Scale, are approximately 1, 3, 3, and 4 years. — related
• The probable error of a score on the language error tests is 2.24 — related
• Yerkes-Bridges coefficients of intelligence of 1.20 or more are attained by very different percentages of children at successive ages (34.5% at ages 4-5 down to 0% at ages 16-17 and 18-on), so they do not represent the same degree of brightness at all ages. — related
• The Binet-Simon and Yerkes Point Scale ratings of children run parallel and are practically identical up to age ten — related
• The Binet scale is heavily verbal — 43 of its 54 tests use words rather than acts — a criticism Ayres raises and the reviewer partially rebuts — related
• The Point Scale's reliability coefficient is .968, with a probable error of 13.7 points and a mental-age probable error of about 3.4 months — related