WAKITA, Takafumi |
|---|
Faculty, Department/Institute
- Faculty of Sociology Department of Sociology Psychology Major
Academic status (qualification)
- Professor Apr. 1,2018
Graduate Degrees・University
- Nagoya University Doctor's Degree Program 2006 ABD- Coursework completed
Homepage Address, E-mail Address
- Homepage Address：http://psych.measurement.jp/
- Homepage Address2：https://researchmap.jp/wakita
Research fields
| Research fields | keyword |
|---|---|
| Educational and social psychology |
Research topics
| research topic | |
|---|---|
| Study theme state | Individual Research |
| research duration | |
| Research Programs | |
| keyword | |
| Research field | |
| Research Topics Overview |
| research topic | |
|---|---|
| Study theme state | Individual Research |
| research duration | |
| Research Programs | |
| keyword | |
| Research field | |
| Research Topics Overview |
Research Career
- 2007/1/10～2008年/3/31
Research Publications
Papers2021/10/29～10.1186/s12913-021-07184-8
Papers2021/10/19～10.1186/s12913-021-07172-y
Book2021/9～9784489023675
Papers2021/6/22～10.1007/s11606-021-06950-y
Book2021/5～
Papers2021/5～10.1007/s12603-020-1556-41279-7707
PapersDissatisfaction with family members’ medical care: the relationship with trust in personal physicians and physicians generally in JapanNao Oguro, Ryo Suzuki, Nobuyuki Yajima, Kosuke Sakurai, Takafumi Wakita, Mark A. Hall, Noriaki Kurita† (†last author)medRxiv (preprint),,2021.04.21.21255773-2021/4/23～10.1101/2021.04.21.21255773
Papers2021/1/26～10.1101/2021.01.25.21250300
Papers2021/1/18～10.1016/j.vhri.2020.06.005
Papers2021/1/14～10.1017/S0007114521000106
Book2020/12～9784489023491
Papers2020/10/31～10.1186/s12882-020-02120-0
Papers2020/9～10.1016/j.xkme.2020.07.0042590-0595
Keynote address2020/6/1～
PapersA proposal and basic examination of adaptive options when using the Likert method51,2,165-1782020/3～0287-6817The Likert method presents certain problems, such as the distribution bias caused by phenomena related to social desirability, central tendency, etc. One conceivable solution to this is to correct the distribution by changing the expression of the option's anchor. In this study, we propose "adaptive options when using the Likert method" designed to change the option set according to the respondent's latent level. We compare two sets of options. In terms of the anchor expression, we used one expression involving a symmetric option (ver. A) and another that increases the number of options in the positive expression (ver. B). As a result, ver. B showed that the distribution of the scale score was corrected to a closed, normal distribution. Furthermore, we also obtained a reasonable result in terms of the psychological distance of options. These results suggest the possibility of manipulating the distribution of the scale score by manipulating the anchor expression, while the possibility of the practical use of "adaptive options" was also demonstrated.
Papers2020～10.20587/pamjaep.62.0_3242189-5538
PapersSARC-F Validation and SARC-F+ EBM Derivation in Musculoskeletal Disease: The SPSS-OK StudyIn refereedKurita, N, Wakita, T, Kamitani, T, Wada, O, Mizuno, KThe journal of nutrition, health & aging23,8,732-7382019/10～10.1007/s12603-019-1222-xOBJECTIVES: To validate the SARC-F questionnaire for sarcopenia screening in musculoskeletal disease setting, and to assess improvements in diagnostic accuracy by adding "EBM" (elderly and body mass index information) to the SARC-F. DESIGN: Diagnostic accuracy study. SETTING AND PARTICIPANTS: The center involved in this study was located in an urban area of Kobe City, Japan. People with musculoskeletal disease in the knee, hip, or spine who were scheduled for surgical treatment were included. MEASUREMENTS: Sarcopenia was evaluated using the Asian Working Group for Sarcopenia (AWGS) and the European Working Group on Sarcopenia in Older People (EWGSOP2), which included bioimpedance, handgrip strength, and gait speed. Patients answered the SARC-F questionnaire and their body mass index was measured. SARC-F and "EBM" information were combined into an original score. The sensitivities, specificities, and areas under the receiver operating characteristic curve (AUC) were estimated and compared to identify sarcopenia. RESULTS: A total of 959 patients were included. Sarcopenia by AWGS criteria was identified in 36 (3.8%) patients. SARC-F had a sensitivity of 41.7% and specificity of 68.5%. SARC-F+EBM had a sensitivity of 77.8% and specificity of 69.6%, with substantial improvement in sensitivity (P<0.001). The AUCs for SARC-F and SARC-F+EBM were 0.557 (95% confidence interval [CI] 0.452-0.662) and 0.824 (95% CI 0.762-0.886), respectively (P<0.001). Similar results were obtained when EWGSOP2 criteria were used as the reference standard. CONCLUSION: The SARC-F alone is not adequate for finding cases in musculoskeletal disease settings. SARC-F+EBM significantly improved the sensitivity and overall diagnostic accuracy of the SARC-F for screening sarcopenia. SARC-F+EBM is potentially useful for screening sarcopenia in different ethnic and disease settings.
Papers2019/3～2185-0070
Papers2019/2～
PapersIn refereed2019～10.37737/ace.1.3_102
PapersValidation and SARC-F+EBM derivation in musculoskeletal disease: the SPSS-OK study.In refereedKurita, N, Wakita, T, Kamitani, T, Wada, O, Mizuno, KThe Journal of Nutrition, Health & Agin23,8,732-7382019～10.1007/s12603-019-1222-xOBJECTIVES: To validate the SARC-F questionnaire for sarcopenia screening in musculoskeletal disease setting, and to assess improvements in diagnostic accuracy by adding "EBM" (elderly and body mass index information) to the SARC-F. DESIGN: Diagnostic accuracy study. SETTING AND PARTICIPANTS: The center involved in this study was located in an urban area of Kobe City, Japan. People with musculoskeletal disease in the knee, hip, or spine who were scheduled for surgical treatment were included. MEASUREMENTS: Sarcopenia was evaluated using the Asian Working Group for Sarcopenia (AWGS) and the European Working Group on Sarcopenia in Older People (EWGSOP2), which included bioimpedance, handgrip strength, and gait speed. Patients answered the SARC-F questionnaire and their body mass index was measured. SARC-F and "EBM" information were combined into an original score. The sensitivities, specificities, and areas under the receiver operating characteristic curve (AUC) were estimated and compared to identify sarcopenia. RESULTS: A total of 959 patients were included. Sarcopenia by AWGS criteria was identified in 36 (3.8%) patients. SARC-F had a sensitivity of 41.7% and specificity of 68.5%. SARC-F+EBM had a sensitivity of 77.8% and specificity of 69.6%, with substantial improvement in sensitivity (P<0.001). The AUCs for SARC-F and SARC-F+EBM were 0.557 (95% confidence interval [CI] 0.452-0.662) and 0.824 (95% CI 0.762-0.886), respectively (P<0.001). Similar results were obtained when EWGSOP2 criteria were used as the reference standard. CONCLUSION: The SARC-F alone is not adequate for finding cases in musculoskeletal disease settings. SARC-F+EBM significantly improved the sensitivity and overall diagnostic accuracy of the SARC-F for screening sarcopenia. SARC-F+EBM is potentially useful for screening sarcopenia in different ethnic and disease settings.
PapersIn refereed2019～10.1027/1015-5759/a0003711015-5759
Papers2018/8～
PapersIn refereed2018/3～
Papers2018～10.20587/pamjaep.60.0_3582189-5538
PapersIn refereed2017/5～
Papers2017/3～1340-3451
PapersIn refereed2017～10.2147/JPR.S1299571178-7090
PapersIn refereed2016/12～0915-9029
Book2016/9～9784623077953
Papers2016/8～
Papersサスティナブルな患者指導を考える 効果的な患者指導のエビデンス作成を目指した尺度開発と検証の実際栗田 宜明, 脇田 貴文, 福原 俊一, 柴垣 有吾日本透析医学会雑誌49,Suppl.1,380-3802016/5～1340-3451
PapersHope in Adult Patients with Chronic Disease : Qualitative Study脇田 貴文, 栗田 宜明, 冨永 直人, 加藤 欽志, 紺野 愼一, 福原 俊一, 柴垣 有吾関西大学心理学研究,7,17-332016/3～2185-0070To identify the sources of hope for patients with chronic disease, a semi - structured interview was conducted with patients middle-aged and older, whose disease types and levels of activities of daily living limitations varied. Six patience - three with chronic kidney disease, one with rheumatoid arthritis, one with spinal cord injury, and another with lumbar spinal canal stenosis - were interviewed by a psychologist and an internist. It was determined that their sources greatly differed depending on individual circumstances, such as types and severity of disease, sources of joy and happiness, family structure, employment status, relationship with friends, etc. However, it also showed a stylization of hope dependent on individual experience; in other words, there was a tendency for patients to redefine their source of hope by setting attainable goals to match their limitations, or acknowledging what they have achieved and finding hope in maintaining their current state. We have determined that the sources of hope are comprised of two categories: ［foundation and process of finding hope］ and ［specific goals and sources］. The former consists of: ［stylization dependent on experience］, ［method and will］, ［use of external information］, ［intrinsic foundation］, and ［extrinsic foundation］. The latter consists of: ［health］, ［source of joy and happiness］, ［family］, and ［social connections］.
PapersIn refereed2015/7～1348-8406
PapersDevelopment and validation of a disease-specific instrument to measure diet-targeted quality of life for postoperative patients with esophagogastric cancer.In refereedHonda, M, Wakita, T, Onishi, Y, Nunobe, S, Miura, A, Nishigori, T, Kusanagi, H, Yamamoto, T, Boddy, A, Fukuhara, SAnnals of Surgical Oncology22,,848-8542015/6～
PapersIn refereed2015/6～10.1245/s10434-015-4696-81068-9265
PapersIn refereed2015/3～10.1007/s00776-015-0694-80949-2658
PapersIn refereed2015/1～10.1371/journal.pone.01166771932-6203
PapersIn refereed2015～10.20587/pamjaep.57.0_282189-5538
Papers2015～10.20587/pamjaep.57.0_462
PapersAge and Survey-Year Effects on Self-Esteem in Japan ::A Cross-Temporal Meta-Analysis of Scores on Rosenberg’s Self-Esteem ScaleIn refereedOSHIO ATSUSHI, OKADA RYO, MOGAKI MADOKA, NAMIKAWA TSUTOMU, WAKITA TAKAFUMIThe Japanese Journal of Educational Psychology62,4,273-2822014/12～10.5926/jjep.62.2730021-5015 The present study reports a cross-temporal meta-analysis exploring age and survey-year differences in the average scores obtained on Rosenberg’s (1965) Self-Esteem Scale in Japan. An examination of refereed journals published in Japan from 1980 to 2013 resulted in the selection of 256 studies involving 48,927 participants. Multiple regression analysis revealed significant effects of both age level and survey year on the average self-esteem scores. The self-esteem scores of junior high and high school students were lower than those of the other age groups, whereas the adults had higher self-esteem scores than did the other age groups. Survey year had a significant negative effect on the average self-esteem scores. The effects of survey year differed by age level. The average self-esteem scores of the junior high and high school students and the adults decreased linearly with survey year, whereas a curvilinear decrease with survey year was found in the college students’ scores. Several translations of Rosenberg’s Self-Esteem Scale are available in Japan. The results of the present study indicated that the number of choices in the scale had an effect on the average self-esteem scores among the junior high, high school, and college students, and also the adults.
PapersIn refereed2014/11～1347-5932
PapersIn refereed2014/11～10.1097/BRS.00000000000005830362-2436
PapersIn refereed2014/7～0386-9768
PapersIn refereed2014/7～10.1186/1471-2296-15-1341471-2296
PapersIn refereed2014/6～10.1016/j.jamcollsurg.2014.05.0171072-7515
PapersIn refereed2014/2～10.1038/ctg.2013.202155-384X
Papers2013/9～0446-6586
PapersIn refereed2013/9～10.1371/journal.pone.00730841932-6203
PapersIn refereed2013/8～10.1007/s00776-013-0455-50949-2658
Papers2013/3～1884-7137
PapersDevelopment of Manga Reading Behavior Scale and Manga Image Scale44,2,75-892013/3～0287-6817
PapersIn refereed2013～10.1007/s00776-013-0482-21436-2023
Papers2013～10.20587/pamjaep.55.0_216
PapersIn refereed2012/8～10.1177/00131644114311620013-1644
PapersIn refereed2012/6～0021-5236
PapersA blended learning program providing core competency in clinical researchKAKUDATE Naoki, TSUGIHASHI Yukio, YOKOYAMA Yoko, YAMAMOTO Yosuke, MISHINA Hiroki, NAKAMURA Fumiaki, FUKUMORI Norio, TAKEGAMI Misa, OHNO Shinya, SATO Keiko, WAKITA Takafumi, WATANABE Kazuhiro, YAMAGUCHI Takuhiro, FUKUHARA ShunichiIgaku Kyoiku / Medical Education (Japan)43,3,205-2102012/6～10.11307/mededjapan.43.2050386-9644In Japan, few health care professionals have a basic understanding（core competency）of the design of clinical research and statistical analysis. We developed a blended distance–learning program comprising face–to–face lectures with e–learning for busy health care professionals who work in the clinical settings to achieve core competency in clinical research. The purpose of this study was to examine the educational effects of this program.<br>1）Four months after the end of the program, 64％ of the participants had started to conduct clinical research.<br>2）This program may increase the number of research colleagues that can discuss clinical research.<br>3）This program could enhance the confidence（self–efficacy）of health care professionals in clinical research.
Papers[Development of a short form of the Japanese big-five scale, and a test of its reliability and validity].Namikawa T, Tani I, Wakita T, Kumagai R, Nakane A, Noguchi HShinrigaku kenkyu : The Japanese journal of psychology83,2,91-992012/6～10.4992/jjpsy.83.910021-5236Personality scales based on the five-factor model, especially the Big-Five Scale of personality trait adjectives (Wada, 1996), are commonly used in Japan. In this study a short form of the Big-Five Scale was constructed. To avoid changes in the capacity dimension caused by the decrease in the number of items, item selection was conducted after Item Response Theory (IRT) scales were constructed for all the items. In Study 1 data was collected from 2 099 participants. A Generalized Partial Credit Model was applied to the IRT model, and items were selected using the slope and location parameters for each item. Cronbach's alpha showed that the short form, as well as the five sub-scales, had sufficient reliability as a personality test. In Study 2, we determined correlations with the NEO-FFI and tested the concurrent validity of the short form. The results indicate that the short form of Big-Five Scale demonstrates sufficient reliability and validity despite the reduced number of items.
PapersLikert法における回答選択枝のレイアウトが選択枝間の心理的距離に与える影響Wakita T関西大学社会学部紀要43,2,135-1442012/3～0287-6817
Papers2012/3～1884-7137
PapersIn refereed2012/2～10.1097/brs.0b013e318216afb40362-2436
PapersErratum to: Prevalence of lumbar spinal stenosis, using the diagnostic support tool, and correlated factors in Japan: a population-based study.In refereedYabuki S, Fukumori N, Takegami M, Onishi Y, Otani K, Sekiguchi M, Wakita T, Kikuchi S, Fukuhara S, Konno SJournal of orthopaedic science : official journal of the Japanese Orthopaedic Association86,2,S126-S1262012/2～10.1007/s00776-013-0482-20021-5325
Papers2012～10.20587/pamjaep.54.0_478
PapersMaking of the Short Version of a Child-Parent Relationship Scale (2)萩生田 伸子, 脇田 貴文, 沢崎 俊之埼玉大学紀要. 教育学部61,2,139-1472012～
PapersIn refereed2011/12～10.1111/j.1365-2753.2011.01808.x1356-1294
PapersIn refereed2011/10～10.1097/brs.0b013e31821fd4b10362-2436
Papers2011/7/1～10.20587/pamjaep.53.0_533
Papers2011/7/1～10.20587/pamjaep.53.0_449
PapersIn refereed2011/5～10.1007/s00540-011-1151-20913-8668
PapersDevelopment of a short-form Birleson Depression Self-Rating Scale for Children並川 努, 谷 伊織, 脇田 貴文精神医学53,5,489-4962011/5～10.11477/mf.14051018710488-1281
Papers2011/3～
Papers2011/3～
PapersIn refereed2011/1～10.1007/s00776-010-0012-40949-2658
Papers2011～10.20587/pamjaep.53.0_3792189-5538
PapersIn refereed2010/11～
PapersIn refereed2010/8～10.1016/j.diabres.2010.07.0070168-8227
PapersConstruction of IRT scales for the Five- Factor personality scale in Japan and examination of the short-form of the scale.In refereedTani, I, Namikawa, T, Wakita, T, Kumagai, R, Nakane, A, Noguchi, HAbstracts of the 27th International Congress of Applied Psychology.,,1429-2010/7～
PapersCross-sectional study of developmental changes in the Five-Factor personality model in Japan.In refereedNamikawa, T, Tani, I, Kumagai, R, Nakane, A, Wakita, T, Noguchi, HAbstracts of the 27th International Congress of Applied Psychology.,,1436-14362010/7～
PapersPersonality Traits Change in Adolecentce and Adulthood in Japan.In refereedTani, I, Noguchi, H, Nakane, A, Kumagai, R, Namikawa, T, Wakita, T15th European Conference on Personality.,,59-592010/7～
Book2010/6～9784779504778
Papers2010/6～0012-1797
Papers2010/3～0272-6386
PapersFactor analytical validation and setting the cut-off score of the short-form for the Birleson Depression Self-Rating Scale for ChildrenNAKANA Ai, TANI Iori, NAMIKAWA Tsutomu, WAKITA Takafumi, KUMAGAI Ryuichi, NOGUCHI Hiroyuki, TSUJII MasatsuguThe Proceedings of the Annual Convention of the Japanese Psychological Association74,0,1PM113-1PM1132010～10.4992/pacjpa.74.0_1PM113
PapersDevelopment of a short-form for the Big Five scale::Examination of developmental changeNAMIKAWA Tsutomu, TANI Iori, WAKITA Takafumi, KUMAGAI Ryuichi, NAKANE Ai, NOGUCHI HiroyukiThe Proceedings of the Annual Convention of the Japanese Psychological Association74,0,1PM116-1PM1162010～10.4992/pacjpa.74.0_1PM116
PapersDevelopment of a short-form for the Big Five scaleTANI Iori, WAKITA Takafumi, KUMAGAI Ryuichi, NAKANE Ai, NAMIKAWA Tsutomu, NOGUCHI HiroyukiThe Proceedings of the Annual Convention of the Japanese Psychological Association74,0,1PM115-1PM1152010～10.4992/pacjpa.74.0_1PM115
Papers2010～10.4992/pacjpa.74.0_WS080
PapersConstruct Validation and appropriateness of scoring method of a short-form for the Birleson Depression Self-Rating Scale for ChildrenNOGUCHI Hiroyuki, TANI Iori, NAMIKAWA Tsutomu, NAKANE Ai, KUMAGAI Ryuichi, WAKITA Takafumi, TSUJII MasatsuguThe Proceedings of the Annual Convention of the Japanese Psychological Association74,0,1PM114-1PM1142010～10.4992/pacjpa.74.0_1PM114
PapersDevelopment of a short-form of the Birleson Depression Self-Rating Scale for Children based on IRT modelWAKITA Takafumi, TANI Iori, KUMAGAI Ryuichi, NAKANE Ai, NAMIKAWA Tsutomu, NOGUCHI Hiroyuki, TSUJII MasatsuguThe Proceedings of the Annual Convention of the Japanese Psychological Association74,0,1PM112-1PM1122010～10.4992/pacjpa.74.0_1PM112
PapersIn refereed2009/8～10.1159/0002326011660-2110
PapersIn refereed2009/7～10.1053/j.ajkd.2009.05.0110272-6386
PapersIn refereed2009/5～10.1016/j.sleep.2008.04.0151389-9457
PapersIn refereed2008/9～10.1016/j.sleep.2008.04.0151389-9457
PapersSummary of CAP-KD study from the 37th Western/Eastern Regional Meeting, JSNASANO Yasushi, AKIZAWA Tadao, FUKUHARA Shunichi, GEJYO Fumitake, MATSUO Seiichi, YORIOKA Noriaki, MORITA Satoshi, WAKITA Takafumi, ONISHI Yoshihiro, KUROKAWA KiyoshiThe Japanese journal of nephrology50,5,528-5312008/7/31～0385-2385
Book2008/3～9784779502514
Papers[Preventive effect of the oral carbonaceous absorbent for progression of chronic kidney failure: report of a RCT].In refereedAsano Y, Akisawa T, Fukuhara S, Shimojyo F, Matsuo S, Yorioka T, Morita T, Wakita T, Onishi Y, Kurokawa KNihon Jinzo Gakkai shi,,-2008/1～
PapersIn refereed2008/1～10.1080/107055008019297181070-5503
Papers2008～
Book2007/11～9784779502002
PapersIn refereed2007/3～
PapersThe Development of Short Version of University Personality Inventory (UPI)WAKITA Takafumi, OSHIO Atsushi, GANKOUJI Reiko, KIRIYAMA MasakoJournal of the College of Humanities17,0,123-1282007/1～1344-6037
PapersDetection of DIF items in Japanese Can-do-statementsNOGUCHI Hiroyuki, KUMAGAI Ryuichi, WAKITA Takafumi, WADA AkikoJLTA Journal10,0,106-1182007～10.20622/jltaj.10.0_106The purpose of this study was to conduct DIF analysis of Japanese Can-do-statements, focusing on the learner's mother tongue, either Chinese or Korean, and investigate (1) concrete verbal behavioral situations that cause DIF and (2) the extent to which differences in methods for detecting DIF affects the results. Results indicated that (1) DIF was advantageous to a speaker whose mother tongue was Chinese, in the direction of 'Can-do' for 5 question items on reading and writing skills. On the other hand, DIF was advantageous to the speaker whose mother tongue was Korean, in the direction of 'Can-do' for 5 question items regarding speaking and listening skills. (2) Similar results, from the perspective detecting DIF, were obtained using SIBTEST, BILOG-MG DIF command, Likelihood ratio test, the Mantel-Haenszel statistical method, and Logistic regression method.
PapersDetection of DIF items in Japanese Can-do-statementsNOGUCHI Hiroyuki, KUMAGAI Ryuichi, WAKITA Takafumi, WADA AkikoJLTA Journal10,0,106-1182007～10.20622/jltaj.10.0_106The purpose of this study was to conduct DIF analysis of Japanese Can-do-statements, focusing on the learner's mother tongue, either Chinese or Korean, and investigate (1) concrete verbal behavioral situations that cause DIF and (2) the extent to which differences in methods for detecting DIF affects the results. Results indicated that (1) DIF was advantageous to a speaker whose mother tongue was Chinese, in the direction of 'Can-do' for 5 question items on reading and writing skills. On the other hand, DIF was advantageous to the speaker whose mother tongue was Korean, in the direction of 'Can-do' for 5 question items regarding speaking and listening skills. (2) Similar results, from the perspective detecting DIF, were obtained using SIBTEST, BILOG-MG DIF command, Likelihood ratio test, the Mantel-Haenszel statistical method, and Logistic regression method.
Papers2006/11/10～1343-3490
PapersExamination about scoring system of Japanese version of HIT-6 .In refereedWakita, T, Suzukamo, Y, Noguchi, H, Fukuhara, Shunichithe 13th Annual Meeting of the International Society for Quality of Life Research, Abstract,,1738-2006/10～
PapersIn refereed2006～10.1111/j.1751-9861.2007.00007.x1071-2089
Papers2006～10.20587/pamjaep.48.0_406
Papers2006～10.20587/pamjaep.48.0_410
Papers2006～10.20587/pamjaep.48.0_416
Papers2006～10.20587/pamjaep.48.0_962189-5538
Papers2006～
Papers2005/7/31～10.20587/pamjaep.47.0_594
Book2005/4～9784521018911
Papers2005/2～
Papers2005～10.20587/pamjaep.47.0_5722189-5538
Papers2004/10～10.4992/jjpsy.75.3310021-5236
Papers2004/2～
Papers2004～
Papers2004～
PapersIn refereed2004～
PapersAssessment of the distance between categories in rating scales by using item response modelTakafumi WakitaShinrigaku Kenkyu75,4,331-3382004～10.4992/jjpsy.75.3310021-5236This study aimed to assess the distance between adjacent categories of rating scales. It is common practice to treat ordinal variables as interval-scaled variables in the analysis of rating scales. Strictly speaking, however, ordinal scale data should be treated as such, since there is little reason and assurance that they are equivalent to interval variables. In view of this practice, this study proposes a method to assess the interval of rating scales, and analyzes empirical data in order to examine the results obtained by the method. This method is based upon the generalized partial credit model which is one of item response theory (IRT) models. The experiment was carried out on two data sets that differed only on the verbal phrasing of the rating. Main results of the study were: 1) the difference in item content (positive or negative) affects the width of a neutral category
and 2) the distance between categories differs significantly reflecting the difference in verbal phrasing.
PapersIn refereed2004～
Papers2003/12/25～1346-1729
PapersComparing the Methods of Detecting DIF Using BILOG-MG and SIBTESTKUMAGAI Ryuichi, WAKITA TakafumiBulletin of the Graduate School of Education and Human Development. Psychology and human developmental sciences50,0,83-902003～10.18999/nupsych.50.831346-1729The purpose of this study was to compare the methods of detecting differential item functioning (DIF). We compared the parametric method which is executed by DIF command in BILOG-MG, and nonparametric method which is executed by SIBTEST. In the first study, we researched by simulation data. When the ratio with DIF item to all the items exceeds 50%, it was difficult to detect DIF correctly in both procedures. In second study, the real data, which is used scale for acquisition of Japanese word meanings, was researched. In both BILOG-MG and SIBTEST, the results of detection of DIF were approximately similar. However, estimated location parameters in BILOG-MG were very extreme, because latent distributional differences were very large between reference group and focal group.
Papers社会的コンピテンス尺度(児童用)作成の試み−項目反応理論を用いた検討−Wakita T心理発達科学論集31,,29-392002/3～
Papers2001～
Courses Taught
- Graduation Thesis Seminar I
- Survey Methods in Psychological Research I
- Graduation Thesis Seminar II
- Survey Methods in Psychological Research
- Cross-Major Lecture
- Psychological Research Methods
- Psychology Seminar（1）A
- Psychology Seminar（1）B
- Seminar on Data Analysis in Clinical Psychology
- Clinical Science and Psychological Practice: Project A
- Psychology Seminar （5）B
- Psychology Seminar （5）A
- Survey Methods in Psychological Research II
- Introduction to Psychology I
- Current Topics in Psychology II
- Intermediate Practicum of Psychology
- Foundation Seminar I
- Foundation Seminar II
- Psychological Research Methods
- Advanced Seminar I
- Advanced Seminar II
- Personal Information
- Research Activities
- Research Activities
- Community Service
- Courses Taught