Intelligence Quotient IQ Data Description
Table 4.2 Classification of Intelligence Quotient IQ
Classification IQ
Near genius or genius 140 and above
Very superior 130
– 139 Superior
120 – 129
Above average 110
– 119 Normal or average
90 – 109
Below average 80
– 89 Dull or borderline
70 – 79
Feeble-minded: moron 50
– 69 Imbecile, idiot
49 and below Adopted from Standford-Binet theory
To provide an additional vivid description of the data distribution of IQ, the histogram of frequency distribution is presented in figure 4.1 as follows:
Figure 4.1 The Histogram of Data of Intelligence Quotient IQ
From the figure 4.1 above, the total number of students are 45 students. The students who got score 81 and 91 are 1 student for each, students who got
score 100 and 106 score are 3 students, score 109 are 7 students, score 113 are 9 students, score 116 are 8 students, score 119 are 4 students, score 121 are 6
students, score 131 are 2 students and score 133 is 1 students. Apparently, from the symmetrical bell-shaped curve, it shows that the data of IQ is normally
distributed.
Intelligence Quotient IQ
Intelligence Quotient IQ
Then, to count the statistics score of IQ, the writer used SPSS program in the 24.0 version. The purpose of counting the statistics score is to know the mean,
median, mode, maximum and minimum score, and sum. The data is described as follows:
Table 4.3 The Statistics Score of Intelligence Quotient IQ
From the descriptive statistics above, the respondents of this study is 45 students. The mean of IQ score is 133.22, which means that it is the average
students could be classified as above average IQ. The median score of IQ is 113.00. Then, the mode of score is 113, which means that most students have 113
score in IQ test. The lowest score of IQ is 81 while the highest is 133, so the range score is 52. In addition, the standard deviation score is 9.349 and the variance is
89.086. Based on description above, it can be concluded that the seventh
semester students of Department of English Education have the high average IQ score. It can be seen that most of students obtained score 113, in which score 113
is classified as high average IQ. Overall, they can be said as smart students.
Statistics
Intelligence Quotient N
Valid 45
Missing Mean
113.22 Median
113.00 Mode
113 Std. Deviation
9.439 Variance
89.086 Range
52 Minimum
81 Maximum
133 Sum
5095