Table 3.

Difference in mean scores and standard deviation (within observer) between pre- and post-benchmark conditions for each performance trait (Univariate GLM, paired t-test); where the difference is significant the higher mean value is shown in bold and trends^t (also in italics).

VS	Difference between mean scores				Difference in standard deviation
Behavior	Mean pre- benchmarks	Mean post- benchmarks	F-statistic	Significance	SD pre- benchmarks	SD post- benchmarks	t-statistic	Significance
Control	2.713	2.763	0.556	0.468	1.701	1.470	2.780	0.014
Motivation	2.930	2.912	0.072	0.791	1.407	1.587	−2.40	0.030
Distraction	3.550	3.163	5.333	0.036	1.654t	1.418	2.113	0.052
Search pattern	2.838	2.900	3.021	0.103	1.413	1.441	−0.227	0.823
Stamina	3.275t	3.088	4.494	0.051	1.339	1.236	1.139	0.273
Indication	3.075	3.275t	3.750	0.072	1.585	1.433	1.637	0.122
Confidence	2.988	3.363	32.767	<0.001	1.843	1.453	4.543	<0.001
Thoroughness	2.825	3.362	16.44	0.001	1.351	1.303	0.390	0.702
Independence	3.225	3.613	13.874	0.002	1.266	1.408	−1.420	0.176
Speed	3.212	3.206	0.004	0.952	1.271	1.203	0.632	0.537
Detect & locate	2.863	2.913	0.128	0.725	1.552	1.492	0.777	0.449
HAS	Difference between mean scores				Difference in standard deviation
Behavior	Mean pre- benchmarks	Mean post- benchmarks	F-statistic	Significance	SD pre- benchmarks	SD post- benchmarks	t-statistic	Significance
Control	2.545	2.655	0.803	0.391	1.506	1.460	0.571	0.581
Motivation	2.982	2.982	0.000	1.000	1.387	1.560	−2.893	0.016
Distraction	3.491	3.055	20.426	0.001	1.633 t	1.495	2.029	0.070
Search pattern	2.964	3.218	12.564	0.005	1.625	1.376	1.874	0.090
Stamina	3.618	3.073	14.063	0.004	1.068	1.300 t	−2.144	0.058
Indication	2.636	3.309	190.139	<0.001	1.380	1.421	−0.247	0.810
Confidence	2.945	3.405	7.183	0.023	1.440	1.476	−0.492	0.633
Thoroughness	2.691	2.782	2.119	0.176	1.670	1.640	0.368	0.720
Independence	2.782	2.927	0.907	0.363	1.189	1.29	0.649	0.531
Speed	2.564	3.382	21.182	0.001	1.101	1.100	0.019	0.985
Detect & locate	2.873	3.291	9.446	0.012	1.548	1.509	0.388	0.706