• Title/Summary/Keyword: Stepwise regression

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Influencing Variables on Life Satisfaction of Korean Elders in Institutions

  • Sung, Ki-Wol
    • Journal of Korean Academy of Nursing
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    • v.33 no.8
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    • pp.1093-1110
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    • 2003
  • Purpose. The number of elders in institutions has increased as family supporting systems have changed in Korea. The purpose of this study were to understand the life satisfaction among elders in institutions and to identify the factors influencing on life satisfaction. Methods. The instruments used were Yun(1982)'s scale modified Memorial University of Newfoundland Scale for Happiness(MUNSH) in life satisfaction, ADL and IADL in activity level, Self-rating Depression Scale(SDS) in depression and Norbeck Social Support Questionnaire(NSSQ) scale in social support. Also, Perceived health status was measured by Visual Graphic Rating Scale. The subject of this study is 107 cognitively intact and ambulatory elders in 7 institutions in Daegu city and Kyungpook province. The data have been collected from May 1 to June 30, 2001. For the analysis of collected data, frequency analysis, mean, standard deviation, Pearson's correlation and stepwise multiple regression analysis were used for statistical analysis by SPSS win(version 9.0) program. Results. Life satisfaction for the elders in institutions showed negative correlation with SDS, and positive correlation with activity level. The regression form of the stepwise multiple regression analysis to investigate the influencing factors of life satisfaction for the elders in institutions was expressed by y =90.988-0. 733x1-0.188x2-0.069x3-0.565x4 (xl: SDS x2: Social support x3: Activity level x4: Monthly pocket Money) and 57.9% of varience in life satisfaction was explained by the model. Conclusion. The factors influencing on life satisfaction among the elders in institutions were SDS, social support, activity level and monthly pocket money. According to the results of this study, depression, social support and activity level are considered the prime causal factors for life satisfaction.

Portable Piezoelectric Film-based Glove Sensor System for Detecting Internal Defects of Watermelon (수박 내부결함판정을 위한 휴대형 압전형 장갑 센서시스템)

  • Choi, Dong-Soo;Lee, Young-Hee;Choi, Seung-Ryul;Kim, Hak-Jin;Park, Jong-Min;Kato, Koro
    • Journal of Biosystems Engineering
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    • v.33 no.1
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    • pp.30-37
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    • 2008
  • Dynamic excitation and response analysis is an acceptable method to determine some of physical properties of agricultural product for quality evaluation. There is a difference in the internal viscoelasticity between sound and defective fruits due to the difference of geometric structures, thereby showing different vibration characteristics. This study was carried out to develop a portable piezoelectric film-based glove sensor system that can separate internally damaged watermelons from sound ones using an acoustic impulse response technique. Two piezoelectric sensors based on polyvinylidene fluoride (PVDF) films to measure an impact force and vibration response were separately mounted on each glove. Various signal parameters including number of peaks, energy ratio, standard deviation of peak to peak distance, zero-crossing rate, and integral value of peaks were examined to develop a regression-estimated model. When using SMLR (Stepwise Multiple Linear Regression) analysis in SAS, three parameters, i.e., zeros value, number of peaks, and standard deviation of peaks were selected as usable factors with a coefficient of determination ($r^2$) of 0.92 and a standard error of calibration (SEC) of 0.15. In the validation tests using twenty watermelon samples (sound 9, defective 11), the developed model provided good capability showing a classification accuracy of 95%.

Problem Solving Ability and Social Anxiety in Nursing Students (간호대학생의 문제해결능력과 사회불안)

  • Cha, Kyeong-Sook;Jun, Won-Hee;Hong, Sung-Sil
    • The Journal of the Korea Contents Association
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    • v.14 no.7
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    • pp.324-333
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    • 2014
  • This study was conducted to investigate the factors affecting the social anxiety in nursing students. A total of 227 nursing students participated in the study. Data were analyzed by frequencies, t-test, ANOVA, Pearson correlation coefficient, and multiple stepwise regression with SPSS WIN 18.0. The mean scores for problem solving ability and social anxiety were at the intermediate level. Problem solving ability negatively correlated with social anxiety. The significant predictors of social anxiety included cognitive reaction within the seven problem solving ability subscales and perceived interpersonal relationship. The regression model explained 22.6% of social anxiety. As a result, to decrease social anxiety in nursing students, nursing educators should develop educational intervention programs to change cognitive distortions presented in unfamiliar social situations and improve interpersonal relationships ability.

Acoustic parameters for induced emotion categorizing and dimensional approach (자연스러운 정서 반응의 범주 및 차원 분류에 적합한 음성 파라미터)

  • Park, Ji-Eun;Park, Jeong-Sik;Sohn, Jin-Hun
    • Science of Emotion and Sensibility
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    • v.16 no.1
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    • pp.117-124
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    • 2013
  • This study examined that how precisely MFCC, LPC, energy, and pitch related parameters of the speech data, which have been used mainly for voice recognition system could predict the vocal emotion categories as well as dimensions of vocal emotion. 110 college students participated in this experiment. For more realistic emotional response, we used well defined emotion-inducing stimuli. This study analyzed the relationship between the parameters of MFCC, LPC, energy, and pitch of the speech data and four emotional dimensions (valence, arousal, intensity, and potency). Because dimensional approach is more useful for realistic emotion classification. It results in the best vocal cue parameters for predicting each of dimensions by stepwise multiple regression analysis. Emotion categorizing accuracy analyzed by LDA is 62.7%, and four dimension regression models are statistically significant, p<.001. Consequently, this result showed the possibility that the parameters could also be applied to spontaneous vocal emotion recognition.

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The Effect of Physical Activity on BMD in Korean Women (여성의 신체적 활동이 골밀도에 미치는 영향)

  • Byun, Young-Soon
    • Journal of Korean Biological Nursing Science
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    • v.1 no.1
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    • pp.56-70
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    • 1999
  • The purpose of this study was to determine the effect of physical activity on bone mineral density(BMD), and osteoporosis risk factors in Korean women. A convenience sample of 115 women completed the survey questionnaire which included the items of physical activity, osteoporosis risk facors, and demographic background. Distal radial BMD was evaluated using DTX-200. The data were analyzed using frequency, percentage, t-test, Pearson Correlation Coefficient, logistic regression, ANOVA, stepwise multiple regression by SPSS WIN. The sample ranged in age from 31 to 78 years(mean=47.67 old). 91.8% were married, 72.2% were housewives, and mean monthly income was 1,094,900won. Mean explain of the women was 1.21MET, and 50.4% of the women were in the physically inactive group. Brisk walking and mountain climbing were frequently cited activities. 1.8% of the subjects smoked, and 27.5% used alcohol. Average daily intake of milk was 1.17 cups and that of caffeine, 1.13 cups. Age, body weight, monthly income, BMI, education level, duration after menopause, menstration status and caffeine. intake were correlated with BMD. In the relationship between the physical activity and BMD, the physically active group showed a higher level of BMD than the physically inactive group. Significant MET decreased was noted with an age increase. In the stepwise multiple regression analysis, body weight, duration after menopause, and the number of children were identified as the most important risk factors. Conclusively, physical activity could be a beneficial effect in the reduction of osteoporosis in Korean women, considering a positive relationship between physical activity and radial BMD.

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Study on Predictors of Academic Resilience in Nursing Students (간호대학생의 학업탄력성 설명 요인)

  • Bae, Young Joo;Park, Sang Youn
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.15 no.3
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    • pp.1615-1622
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    • 2014
  • The purpose of this study was to understand the factors affecting the academic resilience in nursing students. This study involved 280 second year nursing students. Data were collected from March 4 to 8 in 2013. Data were analyzed with frequency, ANOVA, Scheffe's test, person's correlation coefficients, and Stepwise multiple regression with using SPSS version 20.0. The score of academic resilience, problem solving abilities and communication skill in nursing students were 3.67, 3.53 and 3.50 respectively. The results showed that the higher problem solving abilities and communication skills, the higher academic resilience. The factors that significantly affected academic resilience were plan/practice, analytic ability, goal creation ability, cause analysis and performance/assessment accounting for 50.7% of the regression model. Therefore, it is necessary to consider the description of nursing students' academic resilience factors to develop effective education program.

The Influence of Emotional intelligence and Professional self-concept on Retention intention in Nurses (간호사의 감성지능과 전문직 자아개념이 재직의도에 미치는 영향)

  • Kim, Nam-Hee;Park, Sun-Young
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.20 no.12
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    • pp.157-166
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    • 2019
  • This study investigates the influence of emotional intelligence and professional self-concept on retention intention in nurses. The participants were 170 nurses from three hospitals in B city. Data were collected with structured questionnaires, from May 7 to May 30, 2019, and analyzed by applying descriptive statistics, t-test, ANOVA, Pearson's correlation coefficients, and stepwise multiple regression, using the SPSS/WIN 24.0 program. Our results reveal the level of emotional intelligence to be 4.82(7), professional self-concept 2.61(4), and retention intention 5.47(8). We observed that the retention intention positively correlates with emotional intelligence and professional self-concept. The factors influencing retention intention were professional self-concept (β=.456, p<.001), age (β=-.228, p<.001) and holidays (β=.197, p=.002). This regression model determines the intention retention to be 35.9%. We propose that it is necessary to develop and make available programs embracing factors that prevent and reduce retention intention in nurses.

Factors Affecting on Medical Satisfaction in Multicultural Members (다문화 구성원의 의료만족도에 영향을 미치는 요인)

  • Ahn, Seong sin;Jang, Mi-Hwa
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.21 no.9
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    • pp.199-209
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    • 2020
  • This study was a descriptive study performed to identify factors affecting medical satisfaction in multicultural members. The survey participants were 301 multicultural members in A city. The data were analyzed using descriptive statistics and Independent t-tests, One-way ANOVA, and Stepwise multiple regression analysis with the SPSS 14.0 program. Stepwise multiple regression analysis revealed that the predictors of satisfaction among the medical staff were satisfaction with age and health insurance, which accounted for 28% of all variance. Predictors of satisfaction with the medical environment were age and jobs, which accounted for 17% of all variance. Predictors of satisfaction with medical expenses were multicultural form, educational level, and jobs, which accounted for 33% of all variance. These results suggest that we need to develop and implement strategies and programs that can enhance satisfaction with medical use among multicultural members.

The convergent influence of Perceived Stress and the Empowerment on Rehabilitation motive of Stroke patients (뇌졸중 환자가 지각한 스트레스와 임파워먼트가 재활동기에 미치는 융복합적 영향)

  • Kang, Hyo-Jeong;Kwon, Suhye;Youn, Soon-Chul
    • Journal of Digital Convergence
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    • v.14 no.1
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    • pp.291-303
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    • 2016
  • The purpose of this study has been done to identify the influencing factors on rehabilitation motive of stroke patients. A sample of 138 stroke patients in Long-term Care and rehabilitation hospitals completed questionnaires through face - to - face interviews. Data were analyzed using descriptive statistics, t-test, ANOVA, Pearson's correlation coefficient, and Stepwise multiple regression. Rehabilitation motive of stroke pacients was correlated with empowerment (r=.467, p<.001), but not with perceived stress(r=.-.186, p=.029). In a multiple regression, empowerment (${\beta}=.432$, p<.001) and primary care-giver (${\beta}=.175$, p=.023) were associated with rehabilitation motive. These factors attributed to 24% of the total variance in rehabilitation motive. Therefore, the study finding suggests that these significant factors should be considered when developing and implementing convergent care strategies for stroke patients in order to promote their rehabilitation motive.

Affecting Factors on Performance of Standard Precaution for Healthcare associated Infection Control and Prevention in Nursing Students: focused on Patient Safety Attitude, Empowerment, Awareness (간호대학생의 의료관련감염 관리를 위한 표준주의지침 수행도 영향요인 : 환자안전에 대한 태도, 임파워먼트, 인지도를 중심으로)

  • Park, Min Kyoung;Ahn, Mi Na
    • Journal of the Korea Convergence Society
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    • v.10 no.4
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    • pp.265-275
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    • 2019
  • The purpose of this study was to investigate the relationship between attitude toward patient safety, empowerment and awareness, performance of standard precaution for healthcare associated infection control and prevention and to identify the influencing factors of the performance in nursing students. The participants were 185 nursing students on one college in J city, Data collection was conducted from september 10 to 21, 2018. The collected data were analyzed with independent t-test, ANOVA, Pearson's correlation coefficient and stepwise multiple regression using SPSS Statistics 22.0 program. As a result of multiple regression analysis showed that the factors influencing the performance of the standard precaution were awareness, empowerment, participation in the patient safety campaign and the performance was explained by 51.0%. Therefore, In order to improve the performance of standard precaution for nursing students, various convergent education programs should be applied to raise awareness and improve empowerment, and it is necessary to seek ways for nursing students to participate actively in patient safety campaigns.