Motility in Newborn Infants

The motility of 73 newborn infants under 16 days of age has been measured by the stabilimeter-polygraph technique. Some of the more important results are: the demonstration of individual differences in motility soon after birth; the absence of sex differences; the relation of motility to nutritional status, hunger, body temperature, sleep, and various physical measurements and indices such as weight, height, body surface, etc

The Speech Sound Status of a Small Group of Low-Grade Feeble-Minded Children

The speech sounds of a group of ten feeble-minded children with an average age of three years were transcribed in the International Phonetic Alphabet at a year\u27s interval. Comparisons were made of the two transcriptions. Further comparisons were made of the transcriptions of these feeble-minded children\u27s records with six month old infants and with adult speech sound transcriptions

The Chen Index Applied to the Speech Sounds of the Fifth Half Year of Life

The reliability of data may be determined either by correlating odd-even frequencies of speech sounds or by the method of the percent of agreement of the items. In the following both methods will be applied to a sample of the speech sounds of infants. The sample upon which the analyses are based are sixty records of infant speech sounds from a total of over a thousand records from the first to the thirtieth month of life. Two records per month were selected randomly by means of a table of random numbers. In this sample 13 vowel and 26 consonant sounds were found

Reliability of Speech Sound Data of Infants

The reliability of data may be determined either by correlating odd-even frequencies of speech sounds or by the method of the percent of agreement of the items. In the following both methods will be applied to a sample of the speech sounds of infants. The sample upon which the analyses are based are sixty records of infant speech sounds from a total of over a thousand records from the first to the thirtieth month of life. Two records per month were selected randomly by means of a table of random numbers. In this sample 13 vowel and 26 consonant sounds were found

Further Studies in Infant Speech

From time to time reports on the progress of a long time research on the development of speech in infants have been given to this group. Today I should like to discuss three recent findings of this work. The first is concerned with the effect of family occupational status upon the mastery of speech sounds by the infant. The second indicates the effect of the presence in the family of older siblings. And finally, an effort has been made to approach the problem of the diagnosis of speech sound status in the infant with the view of spotting during the period of infancy any indications of retardation

The Relation Between Mental Test Scores on Infants and Speech Development

Chen (1) has formulated a number of indices and ratios which are useful in determining the course of development of pre-meaningful speech. He has also formulated a differential speech development index based upon the difference between speech sounds considered as isolated elements at a given infant age level and the status of these elements in adult speech. The adult speech standard used for comparison is that by Voelker (3). There are two forms of this index described, elsewhere (2). One is the difference between the number of speech sounds elements in infants and adult speech, the second form is the differential percentage index based on the difference in the percent of frequencies in the use of vowel and consonants of infants and adults. A group of infants under 30 months were used. Intelligence test scores were secured by means of the Kuhlmann Test of Mental Development