uji normalitas SPSS

 

🔹 A. Apa itu Uji Normalitas (singkat banget dulu)

Uji normalitas digunakan untuk memastikan apakah data kamu berdistribusi normal.

Kenapa penting?
Karena kamu mau pakai:

• Independent t-test
• ANCOVA

👉 Keduanya butuh asumsi: data harus normal

🔹 B. Data Mana yang Diuji?

Kamu punya banyak variabel. Jangan bingung—yang diuji normalitas adalah:

✅ Minimal yang perlu diuji:

1. Pre_Writing
2. Post_Writing
3. Pre_reflec
4. Post_reflec

✅ Lebih lengkap (recommended untuk jurnal):

Tambahkan:

• habitual action (pre & post)
• understanding (pre & post)
• reflection (pre & post)

🔹 C. Persiapan Data di SPSS

1. Buka SPSS

Masuk ke:

• Variable View

Isi seperti ini:

Name	Type	Measure
Group	Numeric	Nominal
Pre_Writing	Numeric	Scale
Post_Writing	Numeric	Scale
Pre_reflec	Numeric	Scale
Post_reflec	Numeric	Scale

👉 Group:

• 0 = Control (ChatGPT)
• 1 = Experimental (InquiryGPT)

2. Masukkan Data

Pindah ke:
➡️ Data View

Masukkan semua data kamu (baris = peserta, kolom = variabel)

🔹 D. Cara Uji Normalitas di SPSS (PALING PENTING)

🎯 Langkah-langkah:

1. Klik:

➡️ Analyze
➡️ Descriptive Statistics
➡️ Explore

2. Masukkan Variabel

• Masukkan semua variabel ke:
  👉 Dependent List

Contoh:

• Pre_Writing
• Post_Writing
• Pre_reflec
• Post_reflec

3. Pisahkan berdasarkan grup

Masukkan:
👉 Group → ke Factor List

Ini penting supaya:

• Control & Experimental diuji terpisah

4. Klik tombol:

➡️ Plots

Centang:
✅ Normality plots with tests

Opsional (bagus untuk jurnal):
✅ Histogram

Klik Continue

5. Klik:

➡️ OK

🔹 E. Cara Membaca Hasil (INI KRUSIAL)

SPSS akan muncul banyak tabel. Fokus hanya ini:

📊 Tests of Normality

Akan ada 2 kolom:

• Kolmogorov-Smirnov
• Shapiro-Wilk ← ⭐ ini yang dipakai

🎯 Ambil bagian:

👉 Shapiro-Wilk → Sig.

🔹 F. Cara Interpretasi

Nilai Sig.	Artinya
> 0.05	✅ Normal
< 0.05	❌ Tidak normal

🔍 Contoh:

Group	Variable	Sig
Control	Post_Writing	0.200
Experiment	Post_Writing	0.120

👉 Karena semua > 0.05
➡️ Data = NORMAL

🔹 G. Cara Menulis di Artikel (SIAP PAKAI)

Kamu bisa tulis seperti ini:

Versi standar jurnal:

The normality of the data was assessed using the Shapiro–Wilk test. The results indicated that all variables were normally distributed, as the significance values were greater than 0.05 (p > 0.05) for both control and experimental groups.

🔹 H. Tips Penting (biar tidak salah)

❗ 1. Gunakan Shapiro-Wilk

• Karena sample kamu < 100 per grup

❗ 2. Harus per grup

• Jangan campur control + experiment

❗ 3. Jangan panik kalau ada 1 tidak normal

Masih bisa lanjut pakai:

• Transformasi data
• atau tetap lanjut (kalau mendekati normal)

🔥 BONUS: Cara Cepat (Versi Super Singkat)

1. Analyze
2. Descriptive Statistics
3. Explore
4. Masukkan variabel
5. Group → Factor List
6. Plots → centang “Normality tests”
7. OK
8. Lihat Shapiro-Wilk Sig.

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be the judge of what is true,

 

Something still sits uneasy in my chest,
A quiet question I cannot quite rest.
Strange, isn’t it—something feels misaligned,
A moment that lingers inside my mind.

She stood there speaking, leading the way,
Yet when questions came, he chose what to say.
A curious shift, a subtle exchange,
Not wrong perhaps, but quietly strange.

Wasn’t it meant to be done alone?
Each voice accountable, each effort its own.
But I pause, and breathe, and let it be—
Not everything is mine to see.

Let God be the judge of what is true,
Of what is hidden, of what they do.
As for me, I will guard my part,
And tend to the soil within my heart.

I will choose kindness, I will stay right,
Even when things don’t feel quite light.
Bismillah, I begin again—
With faith as strength, and God as my friend.

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12 april 26 minggu

 

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