Articles
<![CDATA[APPLYING ITEM RESPONSE THEORY TO IDENTIFY RESPONDENTS’ TENDENCY TO CHOOSE MIDDLE OPTION ON PSYCHOLOGY SCALE ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ Proyeksi: Jurnal Psikologi Vol 7, No 1 (2012): Jurnal Psikologi Proyeksi VOL. 7 No. 1 April 2012 ]]>
Publisher : <![CDATA[Faculty of Psychology Universitas Islam Sultan Agung Semarang ]]>
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DOI: 10.30659/jp.7.1.33-43
<![CDATA[The question of how large the proportion of respondents who tend to choose the middle option onpersonality scale was difficult to answer since it depends on two factors: respondents themselves anditems. Due to recent development of psychometric theory, this question can be answered by combiningsuch factors into one model. One of the representative models which can facilitate this combination isMixed Rasch Modeling (MRM). This study applied this model to identify respondents’ tendency tochoose the middle option on the psychological scale. The research data obtained from measurements ofthe five personality factors in 200 students. Analysis result which was performed separately on eachpersonality factors suggest that proportion of respondents who chose the middle option is quite smalland only occurs on two personality factors (27 percent in extroversion and 11 percent on opennessfactor). Additional finding showed that respondents who have a tendency to choose the middle optiononly perform in certain items than all items.]]>
<![CDATA[Deteksi dan Eksplorasi Kesesatan Respons Siswa pada Skala Motivasi Berprestasi. ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ Jurnal Pendidikan dan Pengajaran Vol 45 No 2 (2012): Juli, 2012 ]]>
Publisher : <![CDATA[Universitas Pendidikan Ganesha ]]>
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DOI: 10.23887/jppundiksha.v45i2.1825
<![CDATA[Skala psikologi banyak dipakai oleh para peneliti untuk mengukur atribut psikologi siswa di SMA. Selama ini belum ada penelitian yang mengidentifikasi secara psikometris seberapa jauh respons yang diberikan mereka terbebas dari kesesatan pengukuran. Penelitian ini bertujuan untuk mende-teksi respons siswa yang mengandung kesesatan dan mengeksplorasi persentase siswa yang konsisten mengandung kesesatan pada skala motivasi berprestasi. Populasi penelitian adalah siswa kelas 2 SMA di 30 kota yang terbagi dalam 10 propinsi di Indonesia. Sampel penelitian dipilih dengan menggunakan teknik purposif yang berjumlah 2.959 siswa. Instrumen pengukuran yang dipakai adalah skala motivasi berprestasi. Teknik analisis yang dipakai untuk mendeteksi kesesatan respons adalah indeks infit yang dihasilkan dari analisis data berbasis Model Rasch. Data dari pengukuran didapatkan 137 (5%) orang yang cenderung konsisten dalam memberikan respons yang sesat pada ketiga faktor skala. Di sisi lain, konsistensi siswa dalam menghasilkan kesesatan respons untuk dua faktor rata-rata sebesar 259 (9%). Kecilnya nilai persentase ini menunjukkan bahwa penggunaan skala motivasi berprestasi untuk pengukuran atribut psikologi pada siswa SMA sudah tepat. Kata-kata Kunci: kesesatan respon, motivasi berprestasi, atribut psikologi]]>
<![CDATA[Efikasi Mengajar Sebagai Mediator Peranan Faktor Kepribadian terhadap Performasi Mengajar Guru ]]>
<![CDATA[M. Noor Rochman Hadjam]]>;
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ HUMANITAS: Indonesian Psychological Journal Vol 8, No 1: Januari 2011 ]]>
Publisher : <![CDATA[Universitas Ahmad Dahlan ]]>
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DOI: 10.26555/humanitas.v8i1.447
<![CDATA[Penelitian membandingkan peranan efikasi mengajar sebagai mediatorhubungan antara faktor kepribadian dengan performansi mengajar.Partisipan dalam penelitian ini adalah 142 orang guru perwakilan dari seluruh propinsi di Indonesia. Instrumen pengukuran yang dipakai adalah SkalaKepribadian Lima Faktor, Skala Efikasi Mengajar dan Skala PerformansiMengajar. Hasil analisis menunjukkan bahwa peranan faktor kepribadian secara tidak langsung lebih menjelaskan variasi performansi mengajar gurudibanding dengan peranan langsung. Hasil tersebut didasarkan pada hasilanalisis regresi bertahap, pada tahap akhir menunjukkan bahwa masuknyaefikasi mengajar dalam persamaan menurunkan peranan faktor-faktorkepribadian terhadap performansi mengajar guru (DF=17,81; p<0,01;DR2=21,8%). Melalui perbandingan nilai koefisien dua jenis peranan (peranan langsung vs tidak langsung) pada pemodelan persamaan structural (SEM) menghasilkan informasi bahwa peranan tidak langsung lebih signifikan dibanding dengan peranan langsungnya. Temuan tersebut berlakupada kelima faktor kepribadian yang dilibatkan. Secara umum penelitianini memberikan masukan bahwa konstrak kepribadian memiliki cakupanyang luas sehingga memerlukan konstrak lain yang lebih spesifik menjadimediator dalam menjelaskan perilaku kriteria.]]>
<![CDATA[Komparasi Ketepatan Estimasi Koefisien Reliabilitas Teori Skor Murni Klasik ]]>
<![CDATA[wahyu Widhiarso]]>;
<![CDATA[Djemari Mardapi]]>
<![CDATA[ Jurnal Penelitian dan Evaluasi Pendidikan Vol 14, No 1 (2010) ]]>
Publisher : <![CDATA[Graduate School, Universitas Negeri Yogyakarta ]]>
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DOI: 10.21831/pep.v14i1.1973
<![CDATA[Penelitian ini bertujuan untuk membandingkan ketepatan estimasi koefisien reliabilitas pada teori skor murni klasik. Peneliti membandingkan ketepatan estimasi koefisien-koefisien reliabilitas melalui data simulasi. Data simulasi dibangkitkan secara acak berdasarkan besarnya nilai reliabilitas murni, model pengukuran, ukuran sampel dan distribusi normal. Ukuran sampel yang dipakai terdapat empat jenis yaitu sebesar 50, 250, 1000 dan 5000. Reliabilitas murni yang dipakai terdiri dari lima kondisi yaitu 0,5; 0,6; 0,7; 0,8 dan 0,9. Hasil penelitian ini menunjukkan bahwa (a) koefisien reliabilitas dalam teori skor murni klasik yang dikembangkan oleh para ahli pengukuran memiliki ketepatan estimasi yang bervariasi. (b) Rata-rata koefisien reliabilitas memiliki ketepatan estimasi yang cukup tinggi yang dibuktikan dengan kecilnya rerata bias estimasi. (c) Koefisien reliabilitas komposit memiliki ketepatan yang tinggi pada model paralel dan kesetaraan tau, Koefisien Feldt pada model konjenerik, Koefisien Wang pada model korelasi antarsesatan dan Koefisien alpha berstrata pada model multidimensi.]]>
<![CDATA[APLIKASI MODEL MIMIC DALAM MENGIDENTIFIKASI BIAS JENDER DALAM PENGUKURAN MINAT BERWIRAUSAHA ]]>
<![CDATA[Wahyu Widhiarso]]>;
<![CDATA[Handoko Wijatmiko]]>
<![CDATA[ Asian Journal of Innovation and Entrepreneurship Vol 2 No 01 (2013): January 2013 ]]>
Publisher : <![CDATA[UII ]]>
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DOI: 10.20885/ajie.vol2.iss1.art7
<![CDATA[This study aimed to demonstrate the use of MIMIC Model methods to identify items that tend to bias when measuring individual attributes. Individuals attribute, which were explored in this study was entrepreneurship interest, which was reviewed by sexes. Participants in this study were students ( N = 129) with the percentage of 54 percent of men and 64 percent of women. Measurement instruments used in this study was Entrepreneurship Interest Scale, which was composed four dimensions, namely self-development, progression, variation of activity and independence. Analysis showed that of 27 items in the entirely scale contain two items from progression dimensions tends to be biased measured when examined by sexes. The first item measure entrepreneurship interest related to challenging while the second item measure interest in competition. Both items were proven beneficial to men than women, although both sexes have the same level of entrepreneurship interest. The presence of items bias when measuring showed that such items are less relevant to the dimensions measured. Challenges and competition are the pillars of successful entrepreneurship; however, measurements of these two indicators are susceptible to measurement bias. Therefore, measurements on both indicators need to be done carefully in order to provide accurate information.Keywords : Mimic Model, Item Bias, Entrepreneurship interest]]>
<![CDATA[Orientasi Kepatutan Sosial dan Respons Tipuan pada Alat Ukur dalam Konteks Seleksi Kerja ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ Benefit: Jurnal Manajemen dan Bisnis Benefit : Kumpulan Makalah Diskusi Dosen FE UMS Volume 15 No 2 Desember 2011 ]]>
Publisher : <![CDATA[Program Studi Manajemen Fakultas Ekonomi dan Bisnis Universitas Muhammadiyah Surakarta ]]>
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DOI: 10.23917/benefit.v15i2.1348
<![CDATA[This study examined the correlation between social desirability with the magnitude of the individuals’ intensity to fake their responses on personality measurement in the context of job selection. Social desirability bias is defined as the tendency of individuals to give a response in a certain manner that will be viewed favorably by others. 90 students participated in the quasi experimental under within-subject design with two occasions. At the first occasion, participants were asked to complete the five-factor personality scale in an honest way (neutral condition) whereas in the second occasions they were asked to complete as if they are applicants who follow the employment selection (motivational condition). Intensity of faking was operationalized by the differences between both conditions. Data analysis suggests three findings: (a) personality measurement using self-reported techniques was vulnerable to faking when applied to employment selection. (b) There are individual differences in the amount of faking. (c) Social desirability can explain these individual differences, with the effect size between 2% to 20%. This study recommends that the using instrument to measure personality should be modified before it was applied to the selection process with respect to content of indicators and the impact of social desirability]]>
<![CDATA[Peranan Butir Unfavorabel Dalam Menghasilkan Dimensi Baru Dalam Pengukuran Psikologi ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ Jurnal Psikologi Perseptual Vol 1, No 1 (2016): Jurnal Psikologi Perseptual ]]>
Publisher : <![CDATA[Universitas Muria Kudus ]]>
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DOI: 10.24176/perseptual.v1i1.1078
<![CDATA[Meskipun penggunaan butir unfavorabel dalam skala psikologi disarankan dalam banyak referensi, namun beberapa penelitian menemukan rendahnya kualitas properti psikometris butir tersebut. Penelitian ini bertujuan untuk mereplikasi penelitian tersebut dengan menekankan pada validitas faktorial dan kriteria butir-butir unfavorabel. Data penelitian ini didapatkan dari pengukuran motivasi berprestasi pada siswa SMA (N=2986) dengan menggunakan Skala Motivasi Berprestasi. Hasil pengujian model pengukuran melalui pendekatan analisis faktor eksploratori menyimpulkan bahwa model 3 faktor menjelaskan data penelitian dengan tepat. Namun demikian, salah satu dari faktor di model tersebut berisi semua butir unfavorabel. Hasil ini menunjukkan bahwa faktor yang muncul dari analisis lebih diakibatkan oleh kesamaan metode dibanding dengan indikator. Hasil pengujian korelasi antara butir dan ketiga faktor hasil analisis sebelumnya menunjukkan hasil bahwa tidak ada perbedaan nilai validitas kriteria antara butir unfavorabel dan favorabel. Hasil yang sama juga muncul dari korelasi faktor dan kriteria. Kesimpulan yang didapatkan dari penelitian ini adalah melibatkan butir-butir unfavorabel dalam skala cenderung mengganggu validitas faktorial namun tidak pada validitas kriteria skor skala.Kata Kunci : Butir Unfavorabel, Validitas Faktorial, Validitas Kriteria]]>
<![CDATA[Penggunaan Testlet dalam Pengembangan Tes Psikologi ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ INSAN Jurnal Psikologi dan Kesehatan Mental Vol 3 No 1 (2018): INSAN Jurnal Psikologi dan Kesehatan Mental ]]>
Publisher : <![CDATA[Airlangga University Press, Universitas Airlangga ]]>
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DOI: 10.20473/jpkm.V3I12018.44-61
<![CDATA[Abstract. The unit of analysis or measurement is not always item level, but also group of items (testlet). This paper demonstrates the development of measurement using testlet that are rarely applied in Indonesia. The example used in this paper is the development of the measurement of visual ability, one of several test included in AJT COGTEST. In this test, the basis of grouping items into testlet is their similarity of figure being referenced. This test consists of fifteen figure and each figure consists of seven items. The data analysis technique used is the Rasch Model. The result of comparison shows the advantages testlet psychometric properties as compared to item as unit of analysis. The data generated from testlet tends to be unidimensional, not infected local dependencies, high discrimination and high model fit than the unit of analysis in the form of grains. The comparison function test information indicates that the use testlet enhance test information function. In general, the concept of testlet and applications through Winsteps program in the development of measurement tools in presented in this paper.Keywords: Measurement Unit; Rasch Model; Testlet Abstrak. Unit pengukuran tidak selalu berbentuk butir, akan tetapi juga dapat berbentuk kelompok butir (testlet). Tulisan ini mendemonstrasikan pengembangan alat ukur dengan menggunakan testlet yang jarang diterapkan di Indonesia. Contoh yang dipakai dalam tulisan ini adalah pengembangan pengukuran abilitas visual bagian dari AJT COGTEST. Dasar pengelompokan butir menjadi satu testlet adalah kesamaan gambar yang diacu karena beberapa butir mengacu pada gambar yang berbeda. Teknik analisis data yang dipakai adalah Model Rasch. Hasil perbandingan properti psikometris menunjukkan kelebihan testlet dibanding dengan butir. Data yang dihasilkan dari testlet cenderung bersifat unidimensi, tidak terjangkit dependensi lokal, memiliki ketepatan model dan daya diskriminasi butir yang lebih baik dibanding dengan unit analisis berupa butir. Hasil perbandingan fungsi informasi tes menunjukkan bahwa penggunaan testlet meningkatkan fungsi informasi tes. Secara umum konsep mengenai testlet dan aplikasinya melalui program Winsteps dalam pengembangan alat ukur dalam dipaparkan dalam tulisan ini.Kata Kunci : Testlet; Unit Pengukuran; Model Rasch]]>
<![CDATA[JIKA RESPONDEN MENIPU, APAKAH HASIL PENGUKURAN OLEH SKALA MASIH ANDAL? ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ MANASA Vol 1 No 1 (2012): Juni, 2012 ]]>
Publisher : <![CDATA[Faculty of Psychology, Atma Jaya Catholic University of Indonesia ]]>
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<![CDATA[The aim of this study is to explore the impact of faking responses on measurement reliability of psychological scales. Experiments were conducted on 200 subjects who were asked to complete Five Factors Personality Scale (BFI-44) with two different instructions. First instruction asked subjects to respond within a neutral condition, whereas second instruction asked subjects to respond to the scale when they are participating in employment selection (motivated conditions). Comparisons of alpha coefficient between these conditions suggest that faking responses does not interfere measurement reliability. Pure score proportion on observed score was unaffected by presence of faking responses.However, using the state-trait model, it is found that untainted score proportion on observed scores are more related to state score compared to the trait score as main measurement target. Results of separated analysis model toward personality factors shown that Agreeableness and Openness are factors which were relatively resistant to faking responses. Trait score proportion of these factors still large although faking responses were presence.]]>
<![CDATA[APLIKASI UJI KEBERFUNGSIAN DIFERENSIAL UNTUK MENGUJI KETAHANAN BUTIR SKALA PSIKOLOGI TERHADAP RESPONS TIPUAN PADA KONTEKS SELEKSI KERJA ]]>
<![CDATA[Wahyu Widhiarso]]>
<![CDATA[ Jurnal Manajemen Pemasaran Vol. 6 No. 1 (2011): APRIL 2011 ]]>
Publisher : <![CDATA[Institute of Research and Community Outreach - Petra Christian University ]]>
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DOI: 10.9744/pemasaran.6.1.42-48
<![CDATA[This study aimed to identify items on psychological scale vulnerable to faking responses when it is applied to the employee selection process. Personality scale adaptation of BFI-44 was given to 400 respondents that were divided into two groups. The first group was instructed to respond honestly (neutral condition) while the second group was instructed them as if they are applicants who are follow employee selection test (applicants condition). Differential item functioning (DIF) test with Mantel-Haenzel test was employed. Analysis result suggests that 12 items are vulnerable to faking response that is spread out on four personality factors (extroversion factor, agreeableness, emotional stability and openness to new ideas). Considering on small number of items that indicates DIF, we conclude that measurement of psychological that use self-reporting technique is resistant to faking responses. However, review thoroughly or modification of these items when applied to the job selection process was required.]]>
