Review Spss & Simulasi Responsi Biasa
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REVIEW SPSS
& SIMULASI
RESPONSIYogyakarta, 22 April
2012
(C) Kamila, Adam, Firman, Arya
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TOPIC TREE
Praktikum SPSS
Input data & statistik deskriptif
Membedakaan
variabel, dst
Statistik dasar
Uji variansi data
(homogenitas)
Normalitas
Deskriptif
Analitis
Statistik inferensi
Uji analitik statistik
Pake metode
apa?
Korelasi & Regresi
Korelasi
RegresiRegresi linear
sederhana
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INPUT
DATA
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Input data
Jenis Variab
el
Sort case
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JENIS VARIABEL
Data
Kategori Angka
Data
Numeric
Data DIOLA
H
String
Tidak diolah
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SORT CASE
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STATISTIC DESKRIPTIF
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Statistik deskriptif
Statistik dasar(Mean, modus,
SD, dll
Normalitas
Deskriptif Analitis
Variansi/Homogen
itas
Pakai Menu :
Analyze>
descriptive
statistics>
FREQUENCIES
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Uji Normalitas data
Deskriptif
Analitis
Histogram, Q-Q Plot, Kurtosis, Skewness, dkk
Kologorov-Smirnov; Shapiro-Wilk
! PRAKTEK
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Variansi Data/Homogenitas
! PRAKTEK
Pada normalitas dan
homogenitas:
sig. > 0,05
Data = Normal & Homogen
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Statistik Inferensi
• = uji analitik statistik• Steps :
1. Input data2. Uji normalitas3. Tentukan jenis uji
analitisnya4. Lakukan uji hipotesis5. Kesimpulan
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Langkah 2 : Uji Normalitas
• Kalo normal parametric>rumus (uji hipotesis) yang utama
• Kalo gak normalnon parametric > rumus/uji hipotesis turunan
(LIAT HAL 69)
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Langkah 3 : tentukan jenis uji analitiknya
Uji analitis
Komparatif
Salah satu variabel NUMERIK
Berkelompok
Tidak berkelomp
okSemua
variabel KATEGORI
K
Chi Square
Korelatif
Regresi
KorelatifLiat hal
87
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Salah satu variabel NUMERIK
Berkelompok
Berpasangan
DEPENDENT
2 kelompok
NumericPaired
sample t tes
Ordinal Wilcoxon
> 2 kelompok
Numeric ANOVA (repeated)
Ordinal friedman
Gak berpasang
anINDEPEND
ENT
2 kelompok
Numeric
Independent
sample t test
Ordinal Mann-Whitney
> 2 kelompo
k
NumericANOVA (One way)
Ordinal Kruskal-Wallis
Tidak berkelomp
ok
One Sample T
test
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Berkelompok
Berpasangan
DEPENDENT
2 kelompok
Numeric Paired sample t tes
Ordinal Wilcoxon
> 2 kelompok
Numeric ANOVA (repeated)
Ordinal friedman
Gak berpasanganINDEPENDEN
T
2 kelompok
Numeric
Independent
sample t test
Ordinal Mann-Whitney
> 2 kelompo
k
NumericANOVA (One way)
Ordinal Kruskal-Wallis
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Langkah 4 : tentukan skala variabelnya
(Perhatikan hal 69)• Numerik semua pakai
rumus/metode utama
• Ordinal (Salah satunya numerik)rumus/metode turunan
• Nominal-ordinal (gak ada numericnya) turunannya lagi
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Kapan pakai rumus/metode
turunan?(salah 1 dari bawah)
1. Distribusi data gak normal (non
parametric)
2. Variabel gak semuanya numerik
(numeric-ordinal; nominal-
ordinal, dll)
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.. Latihan soal dulu yoo
1. Apakah terdapat perbedaan
rerata body Mass Index (skala
pengukuran numerik) antara
kelompok status ekonomi
tinggi dan kelompok ekonomi
rendah?
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JAWAB
• Numerik & nominal
• 2 kelompok, gak
berpasangan
Berarti :
• Independent T-test atau
• Mann-Whitney
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.. Latihan soal dulu yoo
2. Apakah terdapat perbedaan
rerata kadar kolesterol (skala
pengukuran numerik) sebelum
dan sesudah satu bulan
pengobatan dengan
simvastatin?
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JAWAB
• Numerik & nominal
• 2 kelompok, berpasangan
Berarti :
• ANOVA (One way), atau
• Kruskal Wallis
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.. Latihan soal dulu yoo
3. Apakah terdapat perbedaan
rerata kadar kolesterol (skala
pengukuran numerik) antara
penduduk desa A, B, C, dan D?
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JAWAB
• Numerik & nominal
• 4 kelompok, gak
berpasangan
Berarti :
• ANOVA (repeated), atau
• Friedman
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.. Latihan soal dulu yoo
4. Apakah terdapat hubungan
antara perilaku merokok
(merokok dan tidak merokok)
dengan infertilitas pria
(infertil dan fertil)?
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JAWAB
• Nominal & nominal
Berarti :
• Chi-Square
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.. Latihan soal dulu yoo
5. Apakah terdapat hubungan
antara tingkat ekonomi (di
atas garis kemiskinan, di
bawah garis kemiskinan)
dengan tingkat asupan
makanan (lebih, cukup,
kurang)?
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JAWAB
• Nominal & ordinal
Berarti :
Chi Square
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.. Latihan soal dulu yoo
6. Adakah korelasi antara
kadar gula darah (skala
pengukuran numerik) dengan
kadar kolesterol (skala
pengukuran numerik)?
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JAWAB
• Numerik-numerik
• korelatif
Berarti :
• Pearson, atau
• spearman
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PRAKTEK!
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PARAMETRIC
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NON PARAMETRI
CMann whitney, wilcoxon, cruscal wallis, friedman
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KORELASI DAN
REGRESI
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Bedanya dengan komparatif,
korelasi dan regresi ini sama-
sama uji hipotesis, bedanya
yang ini mencari HUBUNGAN
bukan PERBANDINGAN
KORELASI & REGRESI
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Korelasi-Steps :
1. Input dataTau jenis variabelnya (hal
87)2. Uji normalitas
Kalo normal : pearsom (parametric)
Gak N : spearman (non parametric)3. Uji hipotesis4. Tentukan derajat korelasi5. kesimpulan
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RegresiFungsinya : • Untuk memperkirakan
(estimasi) isi /nilai suatu variabel dengan menggunakan nilai variabel yang udah ada
• Mencari koefisien A & B, pada persamaan :
Y= Ax+By+e
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Regresi, Steps :
1. Tentuin diagram
2. Tentuin B, tentuin A
3. Uji hipotesis
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CHI SQUARE
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CHI SQUARE
• Termasuk uji komparatif,
tapi kedua variabelnya
kategorik
• Termasuk non-parametric =
GAK butuh uji normalitas
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Steps :
1. Input data
2. Pastikan data emang
untuk chi square = dua-
duanya kategorik
3. Weight case
4. Lakukan tes chi square
5. Kesimpulan