Table 3.1 The Likert Scale Rating
Score Optional
Favorable Unfavorable Strongly agree
4 1
Agree 3
2 Disagree
2 3
Strongly disagree 1
4 The questions of questionnaire are taken from indicator of
motivation both intrinsic and extrinsic motivation. Indicator of intrinsic motivation, namely: interest, need, hobby and
goal. Indicator of extrinsic motivation, namely: teacher, parents, and environment.
As describe on the next table: Table 3.2
The Indicators of Questions Items Number
Variable Dimension Indicator Positive Negative
I. Interest 1,3,5,7
2,4,6,8 II. Need
9,10,11,12 13,14
III. Hobby 15,17,19
16,18,20 Intrinsic
IV. Goal 21,23,24, 25
22 I. Teacher
26,30 27,28,29
II. Parent 31,35
32,33,34 Motivation
Extrinsic III. Environment
37,39 36,38,40
2. Documentary Study The writer took the scores about English in final test at the first
semester from the teacher of English to know about students’ achievement in English and those scores to be analyzed
F. Instrumentation
1. The students’ motivation in learning English 1. Conceptual definition
Motivation is hidden power which is coming from inside and outside of the student which drives them to do something benefit
to get the desire changes. 2. Operational definition
Motivation is the scores that the students obtained after they answered questionnaire items about their motivation in learning
English by the following indicators: interest, need, goal, hobby Intrinsic, teacher, parent, and environment Extrinsic. In this
case, the students’ motivation in learning English is as independent variable variable X.
2. English learning achievement 1. Conceptual definition
Learning achievement is a thing done successfully in learning
English, especially with an effort and skill.
2. Operational definition English learning achievement is the scores that students obtained
in learning English after they have followed teaching-learning process in particular of time. In this case, the students’ English
learning achievement is as dependent variable variable Y 3. Validity instrument
According to Saifudin Azwar, research instrument validity questions whether an instrument that will be used has a capability to
measure something to be measured and standard minimum validity coefficient is 0.3.
2
Based on the scale result of try out validity scale in learning motivation for 20 students in 8
th
class of Madrasah Tsanawiyah Al-
Fajar Kedaung Pamulang which consists of 50 items, there are 40
2
Syaifudin Azwar, Penyusunan Skala Psikologi, Yogyakarta : Pustaka Pelajar, 2006 P.99-103.
valid items and 10 invalid items . The numbers of valid item are: 1, 2,
3, 4, 5, 6, 7, 8, 10, 11, 12, 13, 15, 16, 17, 19, 20, 21, 22, 23, 24,25, 27,29, 30, 31,33, 35, 36, 37, 38, 40, 42, 43, 45, 47, 48, 49, and 50. The
numbers of invalid item are: 14, 18, 26, 28, 32, 34, 39, 41, 44, and 46. 4. Reliability Instrument
Reliability defines whether an instrument can measure something to be measured constantly from time to time. Thus, the key words for
qualifying requirements are consistency or unchanged.
3
To measure reliability in this research, we need a measuring tool, and measuring tool which is used technique of Alpha Croncbach. To
measure, the writer used SPSS Statistical Product for Service Solution 14 is used.
The formula to be used to find out reliability: we used Alpha Cronbach formula:
4
α = 2 1 − S
1
² + S
2
² S
x
² Explain :
α = koefisien reliabelitas alfa
S
1
² dan S
2
² = Varians skor belahan 1 dan belahan 2 S
x
² = Varians skor skala
Table 3.3 The Reliability Norm by Guilford
‘r’ Score of Product Moment Interpretation
0.00 – 0.20 Considered as no reliable
0.20 – 0.40 Low reliable
0.40 – 0.70 Medium reliable
0.70 – 0.90 Reliable
0.90 – 1.00 Very reliable
3
Syaifudin Azwar, Penyusunan Skala Psikologi…,P.83.
4
Syaifudin Azwar, Penyusunan Skala Psikologi…,P.87.
