G284 Hori, K & Ito, T. (2018, June) Text mining of children's essays about animals kept at schools focusing on the importance of life and attachment to animals. Poster session presented at the 29th Congress of Applied Psychology (ICAP2018), Montreal
Abstract
In Japan, keeping animals at schools has been attempted, and local veterinarians spontaneously provide support for nearby elementary schools in keeping school animals, and also collected and published children’s essays. This research aims to consider the significance of rearing school animals by examining children’s essays collected in these supporting activities.
In this research, text mining was utilized in order to conduct an exploratory investigation to elucidate the significance of rearing school animals, children’s interaction with animals, development of feelings, affection, and inter-human communication skill through animal caretaking activities without their in abilities due to differences developmental stages.
386 essays have been analyzed, higher school grade children common used active expressions, whereas lower school grade children commonly used expressions suggesting their interest. Emotional expressions were generally positive, regardless of the school grade.
By using text mining, the results of this research indicate that through animal care, children felt the sense of accomplishment, enjoyed contact with animals, obtained knowledge about animals, empathized with animals, considered about animals and other children, and children could consider their own internal state, among others.
This research accomplished its objective to conduct exploratory investigations on children’s interests for animals as expressed in their essays, but in order to understand the significance of keeping school animals, comparative research with essays written by children without the experience of keeping school animals will be required.
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G284 Hori, K & Ito, T. (2018, June) Text mining of children's essays about animals kept at schools focusing on the importance of life and attachment to animals. Poster session presented at the 29th Congress of Applied Psychology (ICAP2018), Montreal
1. Text mining of children‘s essays on animals
kept in schools
focusing on importance of life
and attachment to animals
HORI, K. Seigakuin University Japan
Ito, T. Wako University Japan
2. Research Background
Activities for Rearing School Animals in Japan
Keeping animals at schools in Japan
→An attempt that began in the Meiji era. However,
structural systems to incorporate such activities into
school education is still insufficient.
From around 1980s,
veterinarians spontaneously began providing support to
care for school animals in their neighboring elementary
schools. For example, the Tokyo Veterinary Medical
Association.→As a part of their support project
collected and published children’s essays from model
schools.
To examine the significance of animal rearing activities in school
education.→These children’s essays are effective materials for
analysis.
2
3. Analysis of Essays: Generally focuses on sentence composition and
comprehension abilities
→Evaluation criterion change according to the developmental
stages. Therefore it is Difficult to compare.
To investigate the significance of animal rearing activities the
actual experience of children must be examined while considering
their different developmental stages.
Methods of examining the significance of animal rearing
experience from analysis of essay
=Utilization of text mining
Enables an exploratory investigation on the significance of animal
rearing experiences, interactions with animals, development of
feelings and affection, and the development of inter-human
communication ability through animal caretaking activities, etc.
Significance of Research: Analysis of Essays
3
4. To analyze children’s essays from model
elementary schools using text mining,
and conduct an exploratory investigation on
The interests that children had in animals,
the activities they were involved in,
and feelings generated by animal caring
activities.
Research Objective
4
5. Research Objective: “Essays From Model School Project
for Rearing School Animals” 4 Volumes, (2001-2004),
prints 386 essays by elementary school students
Research Method: Converting essay contents into text
data, and analyzing the word content using text mining.
Utilized Software: Text Mining Studio Ver.4.1
(Mathematical Systems Inc.)
Method
5
6. Result 1: Basic Information
• Target essays: essays written by 386 students
• Average character count per person: 326.3
characters
• Average sentence length: 14.6 characters for one
sentence
• Total number of content words: 50417 words
• Total number of different words: 5313
6
7. Result 2: Number of Essays Among Class Grades
Grade
Number
of essays
1st 41
2nd 52
3rd 28
4th 87
5th 94
6th 81
Unknown 3
Grade
Number of
Essays
Lower Grades
(1st ~3rd )
121
Higher Grades
(4th ~6th )
262
Unknown 3
Graph 2. Number of essays
among higher and lower class
grades
Graph 1. Number of essays
among class grades
7
8. Word think rabbit
prese
nt
do say animal
banta
m
cleani
ng
care cute
Word
Class
verb noun verb verb verb noun noun noun noun
adjec
tive
Appea
rance
Frequ
ency(N
umber of
Words)
1185 1116 434 424 400 365 357 317 298 293
Result 3: Words with high appearance and
commonly used words
Graph 3. High appearance words
Graph 4. Commonly used words
Word think rabbit present do say cute
perfor
m
See good school
Word Class verb noun verb verb verb
adjecti
ve
verb verb
adjecti
ve
noun
Number of
users (persons)
310 215 209 183 182 181 161 158 156 152
8
9. Result 4:
Nouns = Topics and themes
Frequently used general nouns among higher
grades (Chi-squared test, p<.05)
Frequently used general nouns among
lower grades (Chi-squared test, p<.05)
There were no distinguishable
differences among words
9
Animal
Shed
Rearing shed
Bantam
Cleaning
Committee
Friends
Animals
Vegetables
Summer
vacation
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Word
Word
Class
Word Word Class Frequency
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Noun
Rabbits
Food
School
L
Animal
Person
I
Shed
Name
Water
Chicken
Bantam
Beginning
Dung
Teacher
Oneself
Hands
Female
House
Outside
Attribute
Frequency
Total
Frequency
Index
Value
Graph 5. Usage frequency of Nouns
10. Result 5-1: Verbs = Actions
10
Present
Do
In that way
Perform
See
Enter
Think
Give
Die
Eat
Go(行く)
Come(くる)
Not + in that way
Come(来る)
Can become
Can enter
Endeavor
Touch
Say
Go(いく)
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Word Word Class Frequency
Graph 6. Usage frequency of verbs
11. Frequently used verbs among higher grades
(Chi-squared test, p<.05)
Frequently used verbs among lower grades
(Chi-squared test, p<.05)
Result 5-2: Frequency of verb usage among higher and lower grades
High group of usage frequency elicited from difference between expected value and
actual value of the frequency of verb usage calculated from population ratio
11
Graph 7. Usage frequency of verbs among higher and lower grades
Enter
Do
End
Deem
Judge
Have
Think
Teach
Want + do best
Want + do
Know
Put in
Do best
Put out
No + do
Give birth
Begin
Take
Understand
Be born
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Touch
Play
Go
Put
Give
Say
Come
Present
Perform
See(kanji )
Stand
Shake
Sleep
Pet
End
Catch
Run
See
Want+ play
Be pleased
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
Verb
12. Result 6: Adjectives
= Feelings and evaluation
Frequently used adjectives among higher grades
(Chi-squared test, p<.05)
Frequently used adjectives among lower grades
(Chi-squared test, p<.05)
12
Word Word
Class
Hot Adjective
Many Adjective
Scary Adjective
Attribute
Frequency
Total
Frequency
Index
Value
Attribute
Frequency
Total
Frequency
Index
ValueWord
Word
Class
Warm Adjective
Cute Adjective
Quick Adjective
Shameful Adjective
Friendly Adjective
Red Adjective
Interesting Adjective
Word Word Class Frequency
Good Adjective
Cute Adjective
Happy Adjective
Amazing Adjective
Fun Adjective
Sad Adjective
Fast Adjective
Small Adjective
Big Adjective
Scary Adjective
White Adjective
Kind Adjective
Gentle Adjective
Many Adjective
New Adjective
Warm Adjective
Cold Adjective
Stinky Adjective
Interesting Adjective
Lonely Adjective
Graph 8. Usage frequency of Nouns
14. Result 8: Frequency of matching subject
and predicate words
Figure 1. Matching frequency of subject and predicate words 14
Rabbit ~ is present
Rabbit-care
Food(餌)-give
School-come
Animal-like
Animal Rearing Committee-
enter
Rabbit-die
Shed-enter
Care-do
Food-eat
Feel-good
Caretaker-do
School-present
Caretaker-enter
Food(エサ)-give
Bad-feel
Cleaning-do
Bantam-present
Animal shed-present
Animal-care
15. Result 9: Gender differences in the
frequency of using words genders
Index Value
15
Love
Outside
Like
Eat
House
6th grade
Touch + cannot
Touch
Shed
Can + not
Well
Think
Perform
Present
Person
Greenland
Boss
Good
Receive
Teach
Die
Deem
Do
Go
Work hard + want
Live
Task
Teacher
Give to me
Rabbit
Listen
Wear
Day
Escape
Chicken(鶏)
Take
Work hard
Rearing
Dung
Change
Recess
Water
Change
Front
Go out
Put in
Rearing
Two people
Strength
Dislike
Tasty
Black
Food
Take
Interesting
Is there
Two animals
One animal
Calm
Chicken
s-girls s-boys s-unknown
Index Value Index Value
Graph 9. Usage frequency of words among genders
16. Result 10: Positive and negative common noun expressions
Figure 2. Positive and negative common noun expressions
16
Rabbit
Water
Feelings
Chicken
Animals
Shed
Goat
Body
Day
Carry in arms
Face
Boss
Bantam
Dung
Ears
Person
Cleaning
Care
Evaluation
17. Discussion 1
Nouns (express topics and themes)→ Rabbits appeared
frequently (among high appearance and commonly used words).
Verbs (express actions)→ There were both expressions of
active expressions and interest. Estimated from combining
analysis of frequency usage for verbs and subject-predicate
relationships among higher and lower grades.
(Higher grades) were characterized by active
participation, such as “joining the animal rearing committee,”
(we) “feed” and “clean.”
(Lower grades) were characterized by expressions of
interest rather than active participation, such as “touch” the
animals, “play”with the animals” and “go” to the animal shed.
Identical suggestions were obtained from qualitative examination on
“die” by referring to original sentences. 17
18. Discussion 2
Adjectives (expressions of feelings and evaluation)
→ Feelings generated by keeping animals, and feelings experienced
toward animals were usually positive.
(Feelings generated by keeping animals ) “good,” “happy,” “fun”
(Directed toward animals) “cute,” “amazing”
Comparison between word count of frequency of
appearance and commonly used language
→ Results reflected standpoints of “active participation” and “do
not participate but show interest.”
Overall, children were positive about animals and
keeping animals regardless of their grades
18
19. 1. Gender differences in the frequency of using verbs:
Girls: Had a natural affectionate and nurturing perspective toward
animals, such as “like (love)” “(animals) eat,” “touch,” “cannot touch,”
“well,” “present,” “outside.”
Boys: Considered it as a task. Made observations from
continuously being around life and death. Ex. “I want to work
hard,” “task,” “teacher, “die,” “live,” “escape.”
2. From sorting the results of positive and negative
depictions of nouns:
(Utilization of Text Mining Studio Ver.)
Rabbits were most often depicted in both a positive and negative
context.
Other nouns→Less negative expressions. Very positive
expressions for nouns such as feelings, animal, goat, bantam, care,
Discussion 3
19
20. 20
Qualitative examination on “die” with referring to original
sentences
Verbs characteristic to boys
The frequency of the use of verbs:”die” ranks first in boys
Total・girls: under the 20th place
Qualitatively examine with referring to original sentences:
examination of contexts expressing “death”
・Boys often express death as experience of separation.
They do not tend to perceive “death” as an episode related to
animals, compared to girls.
Girls seem to accept old animals’ death as a natural matter.
On the other hand, boys do not perceive it as a natural death.
Discussion 4
21. This research confirmed that children in “Model School
Project for Keeping School Animals for Education”
experienced:
Accomplishment and being fond of taking care of animals.
Labor participation and understandings of animals.
Compassion for animals and others.
Enjoyment in interacting with animals.
Personified animals in perceiving happiness of animals.
One’s own happiness and reflexivity.
Future Tasks:
Investigate the significance of schools with animal rearing
education by comparing this research result to that of children
without the experience of keeping school animals.
Conclusion and Future Tasks
21