metlit ubm - vr.pdf
TRANSCRIPT
METODOLOGI PENELITIAN
POKOK BAHASAN
• TEKNIK PENGUMPULAN DATA
• KUISIONER
• UJI VALIDITAS
• UJI RELIABILITAS
PERENCANAAN PENGUMPULAN DATA
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How?
Where?
PPD
What?
When?
Who?
TEKNIK PENGUMPULAN DATA
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Observasi (Monitoring): mencakup aktivitas
Melihat
Mendengar
Menyentuh
Mencium
Membaca
Melakukan eksperimen
Komunikasi : mencakup aktivitas
Wawancara
Menyebarkan Angket (Kuisioner)
Melakukan Tes
Diskusi Panel
PEDOMAN MEMILIH TPD
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KUISIONER
• INSTRUMEN YANG DIGUNAKAN PADA SAAT MENGUMPULKAN DATA, BAIK KOMUNIKASI MAUPUN OBSERVASI.
• KUMPULAN PERTANYAAN/PERNYATAAN YANG MENUNTUT RESPON SEBAGAI DATA.
• JENISNYA TERTUTUP, TERBUKA, ATAU CAMPURAN KEDUANYA.
• PERTANYAAN/PERNYATAAN DIDASARKAN PADA TEORI ATAU PENALARAN YANG LOGIS.
• MENGGUNAKAN SKALA PENGUKURAN DAN DISAIN SKALA TERTENTU.
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12-7
Dichotomous scaleI plan to purchase a MindWriter laptop in the
12 months.
Yes
No
12-8
Multiple-Choice, Single-Response Scale
What newspaper do you read most often for financial news?
East City Gazette
West City Tribune
Regional newspaper
National newspaper
Other (specify:_____________)
12-9
Multiple-Choice, Multiple-Response Scale
What sources did you use when designing your new
home? Please check all that apply.
Online planning services
Magazines
Independent contractor/builder
Designer
Architect
Other (specify:_____________)
12-10
Likert Scale
The Internet is superior to traditional libraries for
comprehensive searches.
Strongly disagree
Disagree
Neither agree nor disagree
Agree
Strongly agree
12-11
Semantic Differential
12-12
Adapting SD ScalesConvenience of Reaching the Store from Your Location
Nearby ___: ___: ___: ___: ___: ___: ___: Distant
Short time required to reach store ___: ___: ___: ___: ___: ___: ___: Long time required to reach store
Difficult drive ___: ___: ___: ___: ___: ___: ___: Easy Drive
Difficult to find parking place ___: ___: ___: ___: ___: ___: ___: Easy to find parking place
Convenient to other stores I shop ___: ___: ___: ___: ___: ___: ___: Inconvenient to other stores I shop
Products offeredWide selection of different
kinds of products ___: ___: ___: ___: ___: ___: ___:
Limited selection of different
kinds of products
Fully stocked ___: ___: ___: ___: ___: ___: ___: Understocked
Undependable products ___: ___: ___: ___: ___: ___: ___: Dependable products
High quality ___: ___: ___: ___: ___: ___: ___: Low quality
Numerous brands ___: ___: ___: ___: ___: ___: ___: Few brands
Unknown brands ___: ___: ___: ___: ___: ___: ___: Well-known brands
12-13
SD Scale for Analyzing Actor Candidates
12-14
Numerical Scale
12-15
Multiple Rating List Scales
“Please indicate how important or unimportant each service characteristic is:”
IMPORTANT UNIMPORTANT
Fast, reliable repair 7 6 5 4 3 2 1
Service at my location 7 6 5 4 3 2 1
Maintenance by manufacturer 7 6 5 4 3 2 1
Knowledgeable technicians 7 6 5 4 3 2 1
Notification of upgrades 7 6 5 4 3 2 1
Service contract after warranty 7 6 5 4 3 2 1
12-16
Stapel Scales
12-17
Constant-Sum Scales
12-18
Graphic Rating Scales
12-19
Paired-Comparison Scale
12-20
Forced Ranking Scale
12-21
Comparative Scale
CIRI-CIRI INSTRUMEN YANG BAIK
• VALIDITAS : MERUPAKAN TINGKAT DIMANA SEBUAH INSTRUMEN MENGUKUR APA YANG BENAR-BENAR INGIN DIUKUR
• KEHANDALAN (RELIABILITAS) : BERKAITAN DENGAN AKURASI DAN PRESISI DARI SEBUAH PROSEDUR PENGUKURAN
• KEPRAKTISAN : BERKAITAN DENGAN KEMUDAHAN PENAFSIRAN.
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UJI VALIDITAS
• Pengujian validitas dapat dilakukan dengan dua cara:– Analisis Faktor
Analisis faktor dilakukan dengan cara mengelompokan item pertanyaan menjadi beberapa variabel menggunakan analisisfaktor.
– Analisis Butir
Analisis butir dilakukan dengan mengkorelasikan item pertanyaan dengan jumlah seluruh item pertanyaan
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DATA UJI VALIDITAS
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HASIL OLAHAN DATA UJI VALIDITAS
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Correlations
1.000 .243 .382* .177 -.259 .517**. .098 .019 .175 .084 .002
30 30 30 30 30 30.243 1.000 .411* .184 -.262 .440**.098 . .012 .165 .081 .008
30 30 30 30 30 30.382* .411* 1.000 .464** -.302 .631**.019 .012 . .005 .053 .000
30 30 30 30 30 30.177 .184 .464** 1.000 -.093 .627**.175 .165 .005 . .313 .000
30 30 30 30 30 30-.259 -.262 -.302 -.093 1.000 .302.084 .081 .053 .313 . .052
30 30 30 30 30 30.517** .440** .631** .627** .302 1.000.002 .008 .000 .000 .052 .
30 30 30 30 30 30
Pearson CorrelationSig. (1-tailed)NPearson CorrelationSig. (1-tailed)NPearson CorrelationSig. (1-tailed)NPearson CorrelationSig. (1-tailed)NPearson CorrelationSig. (1-tailed)NPearson CorrelationSig. (1-tailed)N
X1_1
X1_2
X1_3
X1_4
X1_5
TOTX1
X1_1 X1_2 X1_3 X1_4 X1_5 TOTX1
Correlation is significant at the 0.05 level (1-tailed).*.
Correlation is significant at the 0.01 level (1-tailed).**.
VALIDITAS ITEM-TOTAL• JIKA BANYAKNYA ITEM ≥ 30 : korelasikan skor
item dengan skor total menggunakan pearsonproduct moment (interval/rasio)
• JIKA BANYAKANYA ITEM < 30 : Gunakankorelasi item-total terkoreksi sebagai berikut
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UJI RELIABILITAS
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t
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KOEFISIEN RELIABILITAS ALPHA
CRONBACH’S :
)1(.2
2/1
2/111 r
rr
KOEFISIEN RELIABILITAS SPEARMAN-
BROWN :
CONTOH UJI RELIABILITAS
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KRITERIA TINGKAT RELIABILITAS
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No Interval Kriteria
1. < 0,200 Sangat rendah
2. 0,200 – 0,399 Rendah
3. 0,400 – 0,599 Cukup
4. 0,600 – 0,799 Tinggi
5. 0,800 – 1,000 Sangat Tinggi
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THANKS F0R YOU PAY
ATTENTION