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Table 11 Quality assessment criterion

From: Big data in education: a state of the art, limitations, and future research directions

R ID

QA1

QA2

QA3

QA4

Total Score

R1

2

0

2

2

6

R2

2

0

1

2

5

R3

2

2

2

2

8

R4

2

0

1

2

5

R5

2

0

2

2

6

R6

2

2

1

2

7

R7

2

0

2

2

6

R8

2

0

1

2

5

R9

2

0

1

2

5

R10

2

0

2

2

6

R11

2

0

2

2

6

R12

2

0

2

2

6

R13

2

0

2

2

6

R14

2

0

2

2

6

R15

2

0

2

2

6

R16

2

0

2

2

6

R17

2

0

2

2

6

R18

2

0

2

2

6

R19

2

0

2

2

6

R20

2

0

2

2

6

R21

2

2

2

2

8

R22

2

0

2

2

6

R23

2

0

2

2

6

R24

2

0

2

2

6

R25

2

0

2

2

6

R26

2

0

2

2

6

R27

2

0

1

2

5

R28

2

2

2

2

8

R29

2

0

1

2

5

R30

2

2

1

0

5

R31

2

0

1

2

5

R32

2

0

2

1

5

R33

2

2

2

2

8

R34

2

2

2

2

8

R35

2

1

2

0

5

R36

2

2

1

0

5

R37

2

2

1

2

7

R38

2

0

2

1

5

R39

2

2

2

2

8

R40

2

1

0

2

5