Informatization Policy (정보화정책)

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A Decision Tree Analysis-based Exploratory Study on the Effects of Using Smart Devices on the Expansion of Social Relationship

의사결정나무 분석을 활용한 스마트 기기의 사용이 사회관계 확대에 미치는 영향에 관한 탐색적 연구

  • Received : 2018.10.11
  • Accepted : 2018.11.28
  • Published : 2019.03.29
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Abstract

This study attempts to make an empirical analysis on how mobile devices affect users in building their social relationship and if their influences are negative or positive. The purpose of this research is to explain the results by considering all the possibilities and exploring everyday lives of using mobile devices. We used the survey data from the "Research on Mobile Environment Awareness" conducted by Gyeonggi Research Institute(GRI). The main question was about the use of mobile devices and social network services (SNS) and users' opinions on using the devices. All of the 31 municipalities in Gyeonggi Province were included as a spatial range, and the final validity sample was 1,004 residents. The extent of the relationship with people is selected as a dependent variable through the multinomial logistic model and the decision tree model. As a result of the multinomial logistic analysis on the questionnaire, the characteristics of the respondents with some changes in the scope of the human relationship were found to have a significant (+) effect on conversation with family, SNS usage, residence in the rural area but not urban area, and device usage for obtaining news. The largest variable affecting the extent of relationship was the SNS usage. As the amount of SNS usage increases, the extent of the relationship also changes a lot.

본 연구는 모바일 기기가 사용자의 관계 형성에 어떠한 영향을 미치는지? 영향을 준다고 하면, 그 관계는 부정적인지 혹은 긍정적인지에 대한 실증적인 분석을 하고자 한다. 모든 가능성을 열어두고 모바일 기기 사용을 중심으로 한 일상생활에 대한 탐색적인 고찰을 통해 서술하려는 목적을 가지고 있다. 이를 위해 경기연구원에서 수행한 "모바일 환경 인식에 관한 연구"의 설문조사 원자료를 사용했다. 주요 질문은 모바일 기기 및 사회관계망 서비스(Social Network Service: SNS)이용 및 기기 사용에 대한 의견에 대한 내용이었다. 경기도 전체의 31개 시 군 모두를 공간적 범위로 설정했으며, 최종 유효 표본은 1,004명 이었다. 다항로지스틱모형 및 의사결정나무를 통해 사람들과의 관계 범위 정도를 종속변수로 선정하여 특성을 탐색하였다. 설문에 대한 다항로지스틱 분석결과 인간관계의 범위의 일부 변화가 있는 응답자의 특성은 가족과의 대화, SNS 사용량, 군(郡) 지역 거주, 사용 내용은 뉴스에서 유의미한 변화(+)효과를 보이는 것으로 나타났다. 관계 범위 정도에 영향을 미치는 가장 큰 변수는 SNS 사용량으로 나타났다. 사용량이 많아질수록 관계 범위 정도 역시 많은 변화를 보이고 있다.

Keywords

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<그림 1> 의사결정나무 결과 Decision Tree Results

<표 2> 모바일 인터넷 일일 이용 유무(지역별/생활수준별)

Daily usage of mobile internet(regional/level of living)

JBSHBC_2019_v26n1_62_t0002.png 이미지

<표 3> 모바일인터넷 일평균 이용시간

Average time of mobile internet use per day

JBSHBC_2019_v26n1_62_t0003.png 이미지

<표 4> SNS사용량에 따른 사람과의 관계 변화

Change of human relationship in real life by SNS usage

JBSHBC_2019_v26n1_62_t0004.png 이미지

<표 6> 스마트기기로 인한 삶의 질 변화

Change in quality of life by using smart device

JBSHBC_2019_v26n1_62_t0006.png 이미지

<표 7> 기존 사례연구별 종속변수 및 독립변수

Dependent Variables and Independent Variables by Existing Case Study

JBSHBC_2019_v26n1_62_t0007.png 이미지

<표 8> 본 연구의 종속변수 및 독립변수

Dependent variable and Independent variable of this research

JBSHBC_2019_v26n1_62_t0008.png 이미지

<표 9> 모형 적합 정보

Model Fitting Criteria

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<표 10> Pseudo R-제곱

Pseudo R2

JBSHBC_2019_v26n1_62_t0010.png 이미지

<표 11> 모수 추정 값(변화 없음 대비 일부확대)

Variables in the Equation(No change with past versus Improved with few people)

JBSHBC_2019_v26n1_62_t0011.png 이미지

<표 12> 모수 추정 값(변화 없음 대비 확대)

Variables in the Equation(No change with past versus Improved with most of the peopl)

JBSHBC_2019_v26n1_62_t0012.png 이미지

<표 13> 위험도

ERROR

JBSHBC_2019_v26n1_62_t0013.png 이미지

<표 1> 모바일 인터넷 일일 이용 유무(성별/연령별)

Daily usage of mobile internet(gender/age)

JBSHBC_2019_v26n1_62_t0014.png 이미지

<표 5> 스마트 기기를 통한 사용내용 및 삶의 질 변화

Change of usage and quality of life through smart device

JBSHBC_2019_v26n1_62_t0015.png 이미지

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