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Size limits for TESS experiments

The shorter an experiment, the more respondents on which it can be constructed. For each unit of experiment length, the maximum number of available respondents (subject to guidelines below) is as follows:

length

max N
 
length
max N
 
length
max N
5000
 
17
1150
 
29
450
6
4000
 
18
1050
 
30
425
7
3500
 
19
1000
 
31
400
8
3200
 
20
850
 
32
380
9
2800
 
21
800
 
33
370
10
2500
 
22
750
 
34
360
11
2250
 
23
650
 
35
350
12
2100
 
24
600
 
36
340
13
2000
 
25
575
 
37
330
14
1650
 
26
550
 
38
320
15
1500
 
27
525
 
39
310
16
1250
 
28
500
 
40
300

Calculating survey length

Calculating number of respondents

What if my experiment needs to be larger than what these limits allow?

Additional details


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