Table 1 Participants’ distribution for combinations of treatment condition, order and sequence of items

Order of condition C ¹ or D ²

AC)

AD)

BC)

BD)

n (xC: n = 49; xD: n = 49)

22

23

27

26

Sequence of items E ³ or F ⁴

ACE)

ACF)

ADE)

ADF)

BCE)

BCF)

BDE)

BDF)

n (xxE: n = 51; xxF: n = 47)

11

11

12

11

14

13

14

12