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Table 4 Estimated marginal means (SE) for evaluation amount of vegetables and meat/fish and satisfaction for all locations

From: Menu-engineering in restaurants - adapting portion sizes on plates to enhance vegetable consumption: a real-life experiment

  Evaluation amount of vegetables
[−2 = too little; 2 = too much]
Evaluation amount of meat or fish
[−2 = too little; 2 = too much]
Satisfaction with meal
[−2 = very dissatisfied; 2 = very satisfied]
Satisfaction with restaurant visit
[−2 = very dissatisfied; 2 = very satisfied]
Period     
Control (n = 530) −.12 (.034)a .18 (.027)a 1.38 (.031)a 1.35 (.028)a
Intervention (n = 469) .32 (.037)b .08 (.030)b 1.25 (.034)b 1.27 (.031)a
Location     
Restaurant 1 (n = 129) −.01 (.059)a .06 (.048)a 1.26 (.054)a 1.23 (.049)a
Restaurant 2 (n = 324) .12 (.037)b .14 (.030)a 1.25 (.034)a 1.29 (.030)a
Restaurant 3 (n = 546) .19 (.029)b .18 (.023)a 1.43 (.026)b 1.40 (.024)b
Main effect Intervention F
(df1,df2)
Partial η 2
73.30***
(1, 1000)
.068
6.26*
(1, 1000)
.006
7.20**
(1, 1000)
.007
3.65
(1, 1000)
.004
Main effect Location F
(df1,df2)
Partial η 2
5.16**
(2, 1000)
.010
2.36
(2, 1000)
.005
10.22***
(2, 1000)
.020
6.95**
(2, 1000)
.014
Main effects Intervention*Location F
(df1,df2)
Partial η 2
1.83
(2, 1000)
.004
.43
(2, 1000)
.001
.94
(2, 1000)
.002
1.27
(2, 1000)
.003
  1. Answer scales ranged from −2 to 2 (standard errors are reported in brackets); Means with a different superscript a, b indicate a significant difference (p < .05) (means are compared two at a time); *** p < .001; **p < .01; *p < .05