Table 4 Repetition of words across units in interpreting textbooks.

From: A corpus-based assessment of vocabulary in interpreting textbooks

  

Textbook A

Textbook B

Repetition across units

 

Lemma

%

Sub-total

%

Lemma

%

Sub-total

%

At least five times

High-frequency words

610

13.4%

739

16.2%

485

11.8%

539

13.1%

 

Mid-frequency words

101

2.2%

  

42

1.0%

  
 

Low-frequency words

1

0.0%

  

1

0.0%

  
 

Supplementary lists

27

0.6%

  

11

0.3%

  

Once to four times

High-frequency words

813

17.8%

1583

34.7%

867

21.0%

1495

36.2%

 

Mid-frequency words

625

13.7%

  

533

12.9%

  
 

Low-frequency words

15

0.3%

  

9

0.2%

  
 

Supplementary lists

130

2.8%

  

86

2.1%

  

Zero

High-frequency words

623

13.7%

2242

49.1%

661

16.0%

2093

50.7%

 

Mid-frequency words

985

21.6%

  

995

24.1%

  
 

Low-frequency words

110

2.4%

  

85

2.1%

  
 

Supplementary lists

524

11.5%

  

352

8.5%

  

Total

   

4564

100.0%

  

4127

100.0%