Analisis Validitas Instrumen Trs

Analisis Validitas instrumen Bentuk Tes
Resp. Skor Jawaban Butir Soal Xi Xi²
1 2 3 4 5 6 7 8 9 10
1 1 0 1 1 0 0 1 0 0 1 5 25
2 1 1 0 1 0 1 1 1 1 1 8 64
3 0 1 0 1 1 1 1 1 0 1 7 49
4 1 1 1 0 1 1 1 1 1 1 9 81
5 1 0 1 1 1 0 0 0 1 1 6 36
6 1 1 0 1 0 1 0 1 1 0 6 36
7 0 1 0 1 1 1 0 0 1 1 6 36
8 0 0 1 1 1 0 1 1 0 1 6 36
9 1 1 1 1 1 0 1 0 1 0 7 49
10 0 0 1 0 0 0 1 0 1 0 3 9
11 1 1 0 1 1 1 1 1 0 1 8 64
12 1 0 0 1 1 0 0 1 1 1 6 36
13 1 0 1 0 0 1 1 0 1 1 6 36
14 0 0 1 0 0 1 1 0 0 1 4 16
15 1 0 1 1 0 1 1 0 1 1 7 49
16 1 1 1 1 1 1 1 1 1 1 10 100
17 0 1 1 1 1 1 0 1 0 1 7 49
18 1 1 0 0 1 1 1 1 1 1 8 64
19 1 1 1 0 0 1 0 1 1 1 7 49
20 1 1 1 1 1 1 1 1 1 1 10 100
21 1 0 1 1 1 1 1 1 1 0 8 64
22 0 1 1 1 1 1 1 0 1 0 7 49
23 1 0 0 1 0 0 0 1 0 1 4 16
24 0 1 1 0 1 1 1 1 1 0 7 49
25 0 1 0 1 0 1 0 0 1 1 5 25
26 1 1 1 0 0 0 1 1 1 1 7 49
27 1 1 0 1 0 1 0 1 0 1 6 36
28 1 1 1 1 1 0 1 1 0 0 7 49
29 0 1 1 1 1 1 1 0 1 1 8 64
30 1 1 0 1 0 0 1 1 1 1 7 49
p 0.667 0.667 0.633 0.733 0.567 0.667 0.700 0.633 0.700 0.767 202 1434
q 0.333 0.333 0.367 0.267 0.433 0.333 0.300 0.367 0.300 0.233
Mp 7.100 7.350 6.895 6.864 7.471 7,200 7.095 7.368 7.048 6.826
Mt 6.733 6.733 6.733 6.733 6.733 6.733 6.733 6.733 6.733 6.733
SDt 1.569 1.569 1.569 1.569 1.569 1.569 1.569 1.569 1.569 1.569
r-pbi 0.331 0.556 0.136 0.138 0.538 0,421 0.353 0.532 0.306 0.108
r-kritis 0.361 0.361 0.361 0.361 0.361 0.361 0.361 0.361 0.361 0.361
Status Drop Valid Drop Drop Valid Valid Drop Valid Drop Drop


Rumus:



Soal no. 1
p= 20/30 =0,667
q= 1-p = 0,333
Mp = (5+8+9+6+6+7+8+6+6+7+10+8+7+10+8+4+7+6+7+7)/20=7,100
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,100-6,733)/1,569=0,331
r-kritis = 0,361

Soal no. 2
P= 20/30 = 0,667
q= 1-p = 0,333
Mp =(8+9+6+6+7+8+10+7+8+7+10+8+7+7+5+7+6+7+8+7)/20=7,350
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,350-6,733)/1,569=0,556
r-kritis = 0,361
Soal no.3
P= 19/30 = 0,633
q= 1-p = 0,367
Mp =(5+9+6+6+7+3+6+4+7+10+7+7+10+8+7+7+7+7+8)/19=6,895
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(6,895-6,733)/1,569=0,136
r-kritis = 0,361

Soal no.4
P= 20/30 = 0,667
q= 1-p = 0,333
Mp =(8+9+6+6+7+8+10+7+8+7+10+8+7+7+5+7+6+7+8+7)/20=7,350
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,350-6,733)/1,569=0,556
r-kritis = 0,361
Soal no.3
P= 22/30 = 0,733
q= 1-p = 0,267
Mp =(5+8+7+6+6+6+6+7+8+6+7+10+7+10+8+7+4+5+6+7+8+7)/22=6,864
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(6,864-6,733)/1,569=0,138
r-kritis = 0,361

Soal no. 5
p= 17/30 =0,567
q= 1-p = 0,433
Mp = (7+9+6+6+6+7+8+6+10+7+8+10+8+7+7+7+8)/17=7,471
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,471-6,733)/1,569=0,538
r-kritis = 0,361

Soal no. 6
P= 20/30 = 0,667
q= 1-p = 0,333
Mp =(8+7+9+6+6+8+6+4+7+10+7+8+7+10+8+7+7+5+6+8)/20=7,200
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,200-6,733)/1,569=0,421
r-kritis = 0,361
Soal no.7
P= 21/30 = 0,700
q= 1-p = 0,300
Mp =(5+8+7+9+6+7+3+8+6+4+7+10+8+10+8+7+7+7+7+8+7)/21=7,095
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,095-6,733)/1,569=0,353
r-kritis = 0,361

Soal no.8
P= 19/30 = 0,633
q= 1-p = 0,367
Mp =(8+7+9+6+6+8+6+10+7+8+7+10+8+4+7+7+7+8+7)/19=7,368
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,368-6,733)/1,569=0,619
r-kritis = 0,361

Soal no.9
P= 21/30 = 0,700
q= 1-p = 0,300
Mp =(8+9+6+6+6+7+3+6+6+7+10+8+7+10+8+7+7+5+7+8+7)/21=7,048
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(7,048-6,733)/1,569=0,306
r-kritis = 0,361

Soal no.10
P= 23/30 = 0,767
q= 1-p = 0,233
Mp =(5+8+7+9+6+6+6+8+6+6+4+7+10+7+8+7+10+4+5+7+6+8+7)/23=6,826
Mt =(∑▒Xt)/N=202/30=6,733
SDt =√((∑▒〖Xt^2 〗)/N-((∑▒Xt)/N))²=√(1434/30-(202/30)²) =1,569
r-pbi =(MP-Mt)/SDt √(p/q)
r-pbi =(6,826-6,733)/1,569=0,091
r-kritis = 0,361
Kesimpulan
r-pbi (r-hitung) > r-kritis maka butir soal “Valid”
r-pbi (r-hitung) < r-kritis maka butir soal “Drop”

SELAMAT BELAJAR....