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Appendix

 APPENDIX - DIACK'S TEST NO. 19

Start at the first word of the test, and simply ask yourself if you know the meaning of the words in order. Mark any word that you don't know, or aren't sure about, and keep going through the test until you find 10 words that you have marked in this way. Then stop. Your score for each test is the number of the last word minus ten. Diack suggests that your total vocabulary size can be estimated by multiplying your average score on a series of tests by 600.


 
Level 1
Level 2
Level 3
1
almond
11
artificial
21
anonymous
2
buoy
12
blunder
22
boycott
3
cul-de-sac
13
contrary
23
caustic
4
gosling
14
lurch
24
crescendo
5
haste
15
medieval
25
depleted
6
impersonate
16
muzzle
26
essence
7
polite
17
perpendicular
27
gist
8
punctual
18
predominate
28
hysterical
9
source
19
submerge
29
insipid
10
traitor
20
turmoil
30
saturate
Level 4
Level 5
Level 6
31
casement
41
arcanum
51
anchylosis
32
decrement
42
chervil
52
crambo
33
capalier
43
intaglio
53
killick
34
lampoon
44
mitrailleuse
54
mumpsimus
35
minutiae
45
ossicle
55
ogdoad
36
ocular
46
pachydermatous
56
orthodromy
37
carnivorous
47
pleonasm
57
paduasoy
38
raucous
48
scree
58
runcinate
39
replicate
49
symbiosis
59
sphagnum
40
sedulous
50
veridical
60
syrinx