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Lee, Kim, Kim, Jeon, and Chang: Relationship between job competency, core self-evaluation, and job performance in dental hygienists
Original Article

J Korean Acad Oral Health 2013;37(3):161-166.

Published online: 12 September 2013

DOI: https://doi.org/10.11149/jkaoh.2013.37.3.161

Relationship between job competency, core self-evaluation, and job performance in dental hygienists

Hae-Jin Lee, Su-Jin Kim, Young-Sam Kim, Jae-Kyu Jeon, Kee-Wan Chang

Department of Preventive & Community Dentistry, Institute of Oral-bio Science, Chonbuk National University Dental School, Jeonju, Korea

Corresponding Author: Kee-Wan Chang Department of Preventive & Community Dentistry, Institute of Oral-bio Science, Chonbuk National University Dental School, 567 Baekje-daero, Deokjin-gu, Jeonju 561-756, Korea Tel: +82-63-270-4034 Fax: +82-63-270-4035 E-mail: prevdent@chonbuk.ac.kr

Received 18 August 2013       Revised 27 September 2013       Accepted 28 September 2013

Copyright © 2013 Journal of Korean Academy of Oral Health

This is an open-access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

Objectives

This study evaluates the relationship between job competency, job performance, and core self-evaluation in dental hygienists.

Methods

The subjects were registered and working dental hygienists in dental clinics. Two surveys were conducted. The first survey was conducted at an academic conference, and the second was via post. The conference participants were 200 dental hygienists, and 156 questionnaires were returned. Another 200 dental hygienists received the questionnaire via mail, and 123 returned the questionnaires. There were 279 questionnaires returned in total; however, only 269 questionnaires were included in the analysis. The collected data were analyzed using SPSS 12.0.

Results

Job performance was classified into oral health education, prevention treatment, and dental assisting. Competency was classified into achievement and behavior, personal leverage, and recognition specialty. All competency of dental hygienists was similarly taken, but the factors influencing each competency differed from the contents of job performance. Thus, appropriate education and training programs are needed by dental hygienists. Factors such as recognition specialty competency, age, and core self-evaluation influenced oral health education. Recognition specialty competency and core self-evaluation influenced prevention treatment. Moreover, academic ability and core self-evaluation influenced concertation of treatment.

Conclusions

These results indicate that the dental hygienists who have a more positive attitude have better job performance. Thus, dental hygienists require continuous evaluation to enhance their professional qualities.

Keywords: Core self-evaluation, Job competency, Job performance

References

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Table 1.
Distribution and characteristics of study participants
Variables Classification Frequency Percent (%)
Age (yrs) 25> 53 19.7
25≤ to 30> 92 34.2
30≤ to 40> 80 29.7
40≤ 44 16.4
Total 269 100.0
Education College 196 72.9
University≤ 71 26.4
Total 269 100.0
Career (yrs) 5> 114 42.4
5≤ to 10> 65 24.2
10≤ to 20> 64 23.8
20≤ 25 9.3
Total 269 100.0

college: 2, 3 years, university: more than 4 years (included graduate school).

Table 2.
Reliability analysis result of questionnaire by variable
Variable Subfields Questions Group by Cronbach's α
Job competency (Subtotal) 24 0.746
Achievement & behavior 9 0.767
Personal leverage 6 0.714
Recognition 9 0.758
Job performance (Subtotal) 15 0.657
Oral health education 5 0.775
Preventive treatment 5 0.631
Dental clinical assisting 5 0.567
Core self-evaluation n (Subtotal) 10 0.764
Positive question 4 0.724
Negative question 6 0.804
Total 49 0.718

Negative questions calculated inverse coding with positive questions.

Table 3.
Licker's scale score distribution of job competency, job performance and core self-evaluation subfields
Variable Subfields Mean
Job competency (Subtotal) 3.52
Achievement & behavior 3.44
Personal leverage 3.59
Recognition 3.54
Job performance (Subtotal) 3.85
Oral health education 4.07
Prevention treatment 3.63
Dental assisting 3.83
Core self-evaluation (Subtotal) 3.40
Positive question 3.78
Negative question 3.15

Core self-evaluation was composed of positive and negative questions. Negative questions calculated inverse coding with positive questions.

Table 4.
Multiple regression for social background, job competency and core self-evaluation requisites by job performance
Dependent variable Independent variable B SE β t R2 mo.-R2 R2 difference
JP Constant 2.882 0.225 12.808†
Core SE 0.284 0.065 0.257 4.337† 0.066 0.063 0.066
JC 0.205 0.092 0.149 2.229* 0.084 0.077 0.017
Age ―0.079 0.038 ―0.132 ―2.094* 0.099 0.088 0.015
Career 0.102 0.950
Education 0.011 0.171

JP, Job performance; Core SE, Core self-evaluation; JC, Job competency. List by variable was presented chronological order to go into the model. *P<0.05,

† P<0.01.

Table 5.
Multiple regression for social background, job competency and core self-evaluation subfields by job performance(stepwise)
Subfields of job performance (dependent variable) Subfields of each requisite (independent variable) B SE β t R2 mo.-R2 R2 differ.
Oral health education Constant 2.636 0.347 7.59†
Recognition 0.407 0.097 0.250 4.19† 0.062 0.059 0.062
Age ―0.112 0.047 ―0.145 2.37* 0.082 0.075 0.020
Education 0.239 0.104 0.140 2.29* 0.100 0.089 0.018
Core SE 0.179 0.091 0.127 1.97* 0.113 0.099 0.013
Career 0.157 1.48
A&B ―0.004 ―0.04
PL ―0.034 ―0.36
Prevention treatment Constant 2.187 0.271 8.06†
Core SE 0.423 0.079 0.313 5.36† 0.098 0.094 0.098
Recognition 0.316 0.097 0.202 3.24† 0.132 0.126 0.035
Age 0.016 0.27
Career 0.047 0.78
Education 0.032 0.52
A&B 0.028 0.31
PL -0.056 -0.61
Dental assisting Constant 4.089 0.136 30.14†
Education ―0.200 0.101 ―0.120 ―1.97* 0.014 0.011 0.014
Core SE 0.203 0.085 0.149 2.39* 0.035 0.028 0.021
Age ―0.122 ―1.94
Career ―0.094 ―1.49
A&B 0.050 0.70
PL ―0.027 ―0.41
Recognition 0.049 0.72

Core SE, Core self-evaluation; A&B, Achievement & behavior; PL, Personal leverage. List by variable was presented chronological order to go into the model. *P<

† P<

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