CHILDES Japanese Okayama Corpus

Creator:
Yoshiko Okayama
Contributor:
Yoshiko Sakazaki

Contributor: Susanne Miyata
Department of Medical Sciences
Aichi Shukotoku University

website

Contributor: Yasuhiro Shirai
Department of Linguistics
Case Western University

website

Participants: 130
Type of Study: naturalistic
Location: Japan
Media type: no longer available
DOI: doi:10.21415/T5189J

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In accordance with TalkBank rules, any use of data from this corpus must be accompanied by at least one of the above references.

Project Description

The Okayama Corpus is a cross-sectional corpus containing mother-child conversations from 130 children between 2;2 and 4;11 collected between 1969 and 1971 in the Osaka area. The corpus contains 31 files of 2 year-olds (14 boys, 17 girls), 67 files of 3 year-olds (26 boys, 41 girls), and 32 files of 4 year-olds (16 boys, 16 girls). The data were collected by students from Mukogawa Women's University (Nishinomiya, Osaka), and edited and published in two parts by Yoshiko Okayama (1970, 1973).

The students were instructed to collect utterances between a child and his/her mother for one whole day from the moment the child would wake up until bedtime. In three cases (files 2, 53, and 78), the grandmother’s utterances were included. The participating children were recruited by the students, who were instructed to select a household they were well acquainted with: typically a close relative or neighbor. All observations took place in summer (April - September). The students took notes during the whole day including short explanations concerning the situation. Utterances directed to other persons were excluded. The handwritten notes were amended by audio recordings (the students carried small tape recorders hidden in a furoshiki-bundle with them). The utterances were transcribed by the students as closely as possible to the actual pronunciation, and edited by Yoshiko Okayama.

For the publication in CHILDES, the data has been reformatted in CHAT format, and main lines in Latin script (Hepburn-style, following Wakachi2002) have been added. The last names as well as the addresses of the participants have been initialized. The files have been re-numbered consecutively, sorted by age and sex (compare Table 1).

Table 1. Data specification
File NameOriginal
Number
AgeSexNumber of
Utterances
CHIMOT (GMA)
001-2.2-M2--012;2.male153211
002-2.3-M2--022;3.male8155 (23)
003-2.3-M2--032;3.male128216
004-2.3-F2--152;3.male271355
005-2.5-M2--042;5.male127122
006-2.5-F2--182;5.female156204
007-2.5-M2--162;5.female593691
008-2.5-F2--192;5.female454609
009-2.5-F2--052;5.female206392
010-2.6-M2--202;6.male130190
011-2.6-F2--212;6.female108148
012-2.6-F2--222;6.female8374
013-2.6-F2--062;5.female221507
014-2.7-M2--242;7.male162210
015-2.7-F2--232;7.female307398
016-2.7-F2--252;7.female6788
017-2.7-F2--262;7.female339505
018-2.7-F2--272;7.female171255
019-2.7-F2--072;7.female3053
020-2.8-M2--282;8.male85118
021-2.9-F2--082;9.female8481
022-2.10-M2--092;10.male141201
023-2.10-M2--102;10.male128331
024-2.10-M2--292;10.male178201
025-2.10-F2--112;10.female161208
026-2.11-M2--122;11.male80141
027-2.11-M2--132;11.male7286
028-2.11-M2--142;11.male7498
029-2.11-M2--302;11.male116172
030-2.11-F2--312;11.female1459
031-2.11-F2--172;11.female276431
032-3.0-M3--303;0.female163241
033-3.0-F3--283;0.female259232
034-3.0-F3--293;0.male5243
035-3.0-F3--273;0.female264638
036-3.1-M3--023;1.male168261
037-3.1-M3--013;1.male238504
038-3.1-F3--313;1.female118231
039-3.2-M3--033;2.male292265
040-3.2-F3--333;2.female9676
041-3.2-F3--353;2.female166179
042-3.2-F3--373;2.female103199
043-3.2-F3--383;2.female7134
044-3.2-F3--323;2.female181212
045-3.3-M3--053;3.male108143
046-3.3-M3--043;3.male89179
047-3.3-F3--393;3.female425571
048-3.4-M3--063;4.male250534
049-3.4-F3--413;4.female238172
050-3.5-F3--423;5.female563732
051-3.5-F3--433;5.female4147
052-3.4-F3--403;4.female6589
053-3.6-M3--083;6.male103107 (178)
054-3.6-M3--093;6.male283442
055-3.6-M3--103;6.male115198
056-3.6-M3--073;6.male224284
057-3.6-F3--363;6.female382403
058-3.6-F3--443;6.female118183
059-3.6-F3--453;6.female92117
060-3.6-F3--463;6.female302392
061-3.6-F3--473;6.female88129
062-3.6-F3--543;6.female75143
063-3.6-F3--343;6.female5055
064-3.7-M3--123;7.male95130
065-3.7-M3--133;7.male148212
066-3.7-M3--143;7.male318250
067-3.7-M3--113;7.male447723
068-3.7-F3--493;7.female5575
069-3.7-F3--503;7.female96178
070-3.7-F3--513;7.female7999
071-3.7-F3--523;7.female187371
072-3.7-F3--533;7.female162225
073-3.7-F3--483;7.female312294
074-3.8-M3--163;8.male80189
075-3.8-M3--153;8.male336372
076-3.8-F3--563;8.female110158
077-3.8-F3--573;8.female322607
078-3.8-F3--553;8.female29063 (266)
079-3.9-M3--173;9.male523795
080-3.9-M3--183;9.male294358
081-3.9-F3--583;9.female171280
082-3.10-M3--203;10.male456742
083-3.10-M3--193;10.male268552
084-3.10-M3--223;10.male100104
085-3.10-M3--213;10.male473814
086-3.10-F3--613;10.female204322
087-3.10-F3--623;10.female407514
088-3.10-F3--633;10.female290427
089-3.10-F3--643;10.female142140
090-3.10-F3-653;10.female6283
091-3.10-F3--593;10.female212467
092-3.10-F3--603;10.female4660
093-3.11-M3--253;11.male108228
094-3.11-M3--233;11.male276255
095-3.11-M3--243;11.male253231
096-3.11-M3--263;11.male149178
097-3.11-F3--673;11.female251415
098-3.11-F3--663;11.female190158
099-4.1-M4--014;1.male8690
100-4.1-M4--024;1.male126116
101-4.1-M4--034;1.male335592
102-4.1-M4--044;1.male793776
103-4.1-M4--054;1.male106183
104-4.2-M4--064;2.male183240
105-4.2-F4--164;2.female171247
106-4.2-F4--174;2.female92141
107-4.2-F4--184;2.female6173
108-4.3-M4--074;3.male197307
109-4.3-M4--084;3.male144285
110-4.3-M4--094;3.male779847
111-4.3-F4--194;3.female322347
112-4.4-M4--114;4.male206280
113-4.4-M4--104;4.male192220
114-4.4-M4--204;4.male159239
115-4.4-F4--214;4.female437463
116-4.5-F4--224;5.female110155
117-4.5-F4--234;5.female102134
118-4.6-F4--244;6.female330510
119-4.6-F4--254;6.female5795
120-4.7.M4--124;7.male275653
121-4.7-F4--264;7.female466870
122-4.7-F4--274;7.female350402
123-4.7-F4--284;7.female199254
124-4.9-M4--134;9.male140183
125-4.9-F4--304;9.female196238
126-4.9-F4--294;9.male3738
127-4.10-M4--144;10.male245385
128-4.10-F4--324;10.female133133
129-4.10-F4--314;10.female244427
130-4.11-M4--154;11.male252328
Total:26,41537,269