Three Psychological Scaling Methods Applied to Language Development Several psychological scaling methods are compared for usefulness in measuring language development displayed in samples of children’s speech with reference to “intricacy of language usage.” The methods evaluated are equal-appearing intervals, successive intervals, and direct magnitude-estimation. Observers rated typed samples of speech, 1 for each of 50 children, by the ... Research Article
Research Article  |   December 01, 1968
Three Psychological Scaling Methods Applied to Language Development
 
Author Affiliations & Notes
  • Dorothy Sherman
    University of Iowa, Iowa City, Iowa
  • Franklin H. Silverman
    University of Iowa, Iowa City, Iowa
Article Information
Research Articles
Research Article   |   December 01, 1968
Three Psychological Scaling Methods Applied to Language Development
Journal of Speech, Language, and Hearing Research, December 1968, Vol. 11, 837-841. doi:10.1044/jshr.1104.837
History: Received June 27, 1968
 
Journal of Speech, Language, and Hearing Research, December 1968, Vol. 11, 837-841. doi:10.1044/jshr.1104.837
History: Received June 27, 1968

Several psychological scaling methods are compared for usefulness in measuring language development displayed in samples of children’s speech with reference to “intricacy of language usage.” The methods evaluated are equal-appearing intervals, successive intervals, and direct magnitude-estimation.

Observers rated typed samples of speech, 1 for each of 50 children, by the method of equal-appearing intervals and by the method of direct magnitude-estimation. Both equal-appearing-intervals median scale values and successive-intervals scale values were derived from the equal-appearing-intervals ratings.

The two sets of scale values obtained from the same data by the methods of equal-appearing intervals and of successive intervals are closely related (r = 0.995). The direct-magnitude-estimation scale values also are closely related to the equal-appearing-intervals scale values (r = 0.92).

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