Noboru Iwata
Datos Biográficos
| ID | 1728008 |
|---|---|
| NOMBRE | Noboru Iwata |
| NOMBRES | Noboru |
| APELLIDO | Iwata |
| FIRMA | IWATA N |
| AFILIACIONES | Hiroshima International University |
| ORCID | 0000-0002-5963-2120 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 15 |
| TOTAL DE CITAS | 29 |
| TOTAL COMO AUTOR | 15 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 1989 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2023 |
| ÍNDICE H | 3 |
The impact of negative and positive affectivity on the relationship between work-related psychological factors and work engagement in Japanese workers
These results emphasize when researchers aim to evaluate the change of psychosocial factors in the workplace, such as improving the workplace environment among Japanese workers, it might be beneficial to measure positive indicators in addition to negative indicators. Furthermore, enriching job resources would be effective in improving WE and alleviating psychological distress
Do Mothers and Fathers Assess their Children's Behavioral Problems in the Same Way as do their Children? An IRT Investigation on the Strengths and Difficulties Questionnaire
This study investigated the equivalence of different types of informants, such as children (or early adolescents) and parents, in evaluating child externalizing and internalizing problems. We applied a polytomous item response theory (IRT) model for the Strengths and Difficulties Questionnaire (SDQ). We obtained responses to three subscales—Conduct Problems, Hyperactivity/Inattention, and Emotional Symptoms—from 541 elementary school students age…
Workaholism, Work Engagement and Child Well-Being
This study examines how working parents' work attitudes (i.e., workaholism and work engagement) are associated with their child's psychological well-being. Based on the Spillover-Crossover model (SCM), we hypothesize that (a) work-to-family spillover (i.e., work-to-family conflict and facilitation) and (b) employee happiness will sequentially mediate the relationship between parents' work attitudes and their child's emotional and behavioral probl…
Lithium in Tap Water and Suicide Mortality in Japan
Lithium has been used as a mood-stabilizing drug in people with mood disorders. Previous studies have shown that natural levels of lithium in drinking water may protect against suicide. This study evaluated the association between lithium levels in tap water and the suicide standardized mortality ratio (SMR) in 40 municipalities of Aomori prefecture, which has the highest levels of suicide mortality rate in Japan. Lithium levels in the tap water …
Cross-national epidemiology of DSM-IV major depressive episode
BACKGROUND: Major depression is one of the leading causes of disability worldwide, yet epidemiologic data are not available for many countries, particularly low- to middle-income countries. In this paper, we present data on the prevalence, impairment and demographic correlates of depression from 18 high and low- to middle-income countries in the World Mental Health Survey Initiative. METHODS: Major depressive episodes (MDE) as defined by the Diag…
Why Japanese workers show low work engagement
With the globalization of occupational health psychology, more and more researchers are interested in applying employee well-being like work engagement (i.e., a positive, fulfilling, work-related state of mind that is characterized by vigor, dedication, and absorption) to diverse populations. Accurate measurement contributes to our further understanding and to the generalizability of the concept of work engagement across different cultures. The p…
The performance of the Japanese version of the K6 and K10 in the World Mental Health Survey Japan
Two new screening scales for psychological distress, the K6 and K10, have been developed using the item response theory and shown to outperform existing screeners in English. We developed their Japanese versions using the standard backtranslaton method and included them in the World Mental Health Survey Japan (WMH‐J), which is a psychiatric epidemiologic study conducted in seven communities across Japan with 2436 participants. The WMH‐J used the …
Correlates of Retrospective Early Life Experience with Personality in Young Japanese Women
To examine the influence of early experiences on the development of personality. We used the Temperament and Character Inventory to assess 98 young women who had first entered a company. Different early experiences were linked, albeit weakly, to test scores. Both partial correlations and multiple regression analyses indicated that Self-directedness was higher if women reported more care of parents. Partial correlation, but not multiple regression…
Race/ethnicity and depressive symptoms
Reliability of the State-Trait Anxiety Inventory, Form Y in Japanese Samples
The internal consistency of the State-Trait Anxiety Inventory, Form Y was examined using data collected from Japanese participants by five diverse surveys, in which one included American university students. Cronbach coefficient α was calculated separately for state and trait items as well as for anxiety-present and -absent items. The internal consistency was higher for the anxiety-absent items than those of the state and trait anxiety items, but…
Child emotional and physical maltreatment and adolescent psychopathology
The rate of different types of maltreatment of children younger than the age of 16 by parents was investigated among a sample of 119 Japanese nonconsulting adolescents. Emotional neglect, threat, putting to shame, slapping, punching with a fist, hitting with an implement, and burning by the father or the mother were reported to have occurred at least several times a year by 21.0%, 26.1%, 14.3%, 40.3%, 25.2%, 14.3%, and 0.8% of the participants, r…
Positive and Negative Affect in the Factor Structure of the State-Trait Anxiety Inventory for Japanese Workers
The factor structure of Form Y of the State-Trait Anxiety Inventory (STAI-Y) was examined with 1,862 Japanese adult workers (1,509 men, 353 women). The initial principal component analysis extracted three factors based on the scree test. All 20 state (S-Anxiety) and 20 trait (T-Anxiety) items had dominant salient loadings on the first factor, which reflected "over-all anxiety." The three factors identified by an oblique (promax) rotation were lab…
Positive and Negative Affect in the Factor Structure of the State-Trait Anxiety Inventory for Japanese Workers
Age differences among Japanese on the center for epidemiologic studies depression scale
Prevalence of depressive symptoms in a Japanese occupational setting
We measured the prevalence of depressive symptoms in 2,190 Japanese tax office workers using the Japanese version of the Center for Epidemiologic Studies Depression Scale (CES-D). Score distribution by sex was more symmetrical and the mean score of each sex was higher than in the United States population. A high level of depressive symptoms was found in 15.2 percent of males and 10.6 percent of females by controlling for age and marital status. M…
Race/ethnicity and depressive symptoms
Age differences among Japanese on the center for epidemiologic studies depression scale
Prevalence of depressive symptoms in a Japanese occupational setting
We measured the prevalence of depressive symptoms in 2,190 Japanese tax office workers using the Japanese version of the Center for Epidemiologic Studies Depression Scale (CES-D). Score distribution by sex was more symmetrical and the mean score of each sex was higher than in the United States population. A high level of depressive symptoms was found in 15.2 percent of males and 10.6 percent of females by controlling for age and marital status. M…
Prevalence of depressive symptoms in a Japanese occupational setting
We measured the prevalence of depressive symptoms in 2,190 Japanese tax office workers using the Japanese version of the Center for Epidemiologic Studies Depression Scale (CES-D). Score distribution by sex was more symmetrical and the mean score of each sex was higher than in the United States population. A high level of depressive symptoms was found in 15.2 percent of males and 10.6 percent of females by controlling for age and marital status. M…
Age differences among Japanese on the center for epidemiologic studies depression scale
Positive and Negative Affect in the Factor Structure of the State-Trait Anxiety Inventory for Japanese Workers
The factor structure of Form Y of the State-Trait Anxiety Inventory (STAI-Y) was examined with 1,862 Japanese adult workers (1,509 men, 353 women). The initial principal component analysis extracted three factors based on the scree test. All 20 state (S-Anxiety) and 20 trait (T-Anxiety) items had dominant salient loadings on the first factor, which reflected "over-all anxiety." The three factors identified by an oblique (promax) rotation were lab…
Positive and Negative Affect in the Factor Structure of the State-Trait Anxiety Inventory for Japanese Workers
Reliability of the State-Trait Anxiety Inventory, Form Y in Japanese Samples
The internal consistency of the State-Trait Anxiety Inventory, Form Y was examined using data collected from Japanese participants by five diverse surveys, in which one included American university students. Cronbach coefficient α was calculated separately for state and trait items as well as for anxiety-present and -absent items. The internal consistency was higher for the anxiety-absent items than those of the state and trait anxiety items, but…
Child emotional and physical maltreatment and adolescent psychopathology
The rate of different types of maltreatment of children younger than the age of 16 by parents was investigated among a sample of 119 Japanese nonconsulting adolescents. Emotional neglect, threat, putting to shame, slapping, punching with a fist, hitting with an implement, and burning by the father or the mother were reported to have occurred at least several times a year by 21.0%, 26.1%, 14.3%, 40.3%, 25.2%, 14.3%, and 0.8% of the participants, r…
Correlates of Retrospective Early Life Experience with Personality in Young Japanese Women
To examine the influence of early experiences on the development of personality. We used the Temperament and Character Inventory to assess 98 young women who had first entered a company. Different early experiences were linked, albeit weakly, to test scores. Both partial correlations and multiple regression analyses indicated that Self-directedness was higher if women reported more care of parents. Partial correlation, but not multiple regression…
Race/ethnicity and depressive symptoms
The performance of the Japanese version of the K6 and K10 in the World Mental Health Survey Japan
Two new screening scales for psychological distress, the K6 and K10, have been developed using the item response theory and shown to outperform existing screeners in English. We developed their Japanese versions using the standard backtranslaton method and included them in the World Mental Health Survey Japan (WMH‐J), which is a psychiatric epidemiologic study conducted in seven communities across Japan with 2436 participants. The WMH‐J used the …
Why Japanese workers show low work engagement
With the globalization of occupational health psychology, more and more researchers are interested in applying employee well-being like work engagement (i.e., a positive, fulfilling, work-related state of mind that is characterized by vigor, dedication, and absorption) to diverse populations. Accurate measurement contributes to our further understanding and to the generalizability of the concept of work engagement across different cultures. The p…
Cross-national epidemiology of DSM-IV major depressive episode
BACKGROUND: Major depression is one of the leading causes of disability worldwide, yet epidemiologic data are not available for many countries, particularly low- to middle-income countries. In this paper, we present data on the prevalence, impairment and demographic correlates of depression from 18 high and low- to middle-income countries in the World Mental Health Survey Initiative. METHODS: Major depressive episodes (MDE) as defined by the Diag…
Lithium in Tap Water and Suicide Mortality in Japan
Lithium has been used as a mood-stabilizing drug in people with mood disorders. Previous studies have shown that natural levels of lithium in drinking water may protect against suicide. This study evaluated the association between lithium levels in tap water and the suicide standardized mortality ratio (SMR) in 40 municipalities of Aomori prefecture, which has the highest levels of suicide mortality rate in Japan. Lithium levels in the tap water …
Do Mothers and Fathers Assess their Children's Behavioral Problems in the Same Way as do their Children? An IRT Investigation on the Strengths and Difficulties Questionnaire
This study investigated the equivalence of different types of informants, such as children (or early adolescents) and parents, in evaluating child externalizing and internalizing problems. We applied a polytomous item response theory (IRT) model for the Strengths and Difficulties Questionnaire (SDQ). We obtained responses to three subscales—Conduct Problems, Hyperactivity/Inattention, and Emotional Symptoms—from 541 elementary school students age…
Workaholism, Work Engagement and Child Well-Being
This study examines how working parents' work attitudes (i.e., workaholism and work engagement) are associated with their child's psychological well-being. Based on the Spillover-Crossover model (SCM), we hypothesize that (a) work-to-family spillover (i.e., work-to-family conflict and facilitation) and (b) employee happiness will sequentially mediate the relationship between parents' work attitudes and their child's emotional and behavioral probl…
The impact of negative and positive affectivity on the relationship between work-related psychological factors and work engagement in Japanese workers
These results emphasize when researchers aim to evaluate the change of psychosocial factors in the workplace, such as improving the workplace environment among Japanese workers, it might be beneficial to measure positive indicators in addition to negative indicators. Furthermore, enriching job resources would be effective in improving WE and alleviating psychological distress
Psychiatry (12 obras) · Psychology (12 obras) · Clinical Psychology (11 obras) · Anxiety (8 obras) · Child and Adolescent Psychosocial and Emotional Development (8 obras) · Clinical Psychology (7 obras) · Social Psychology (7 obras) · Developmental psychology (5 obras) · Medicine (5 obras) · Social Psychology (5 obras)