Data analysis revealed different impacts of the experimented soil biota on the soil physical properties.
For each month, we test the hypotheses that the model matches the experiment for the control group and for the program group, and the hypothesis that the simulated impact of the experiment matches the actual impact.
These results could assist in determining the potential environmental impact of the experiment, as well as guiding the water column sampling activities during the experiment itself.
However, this effect was weak in comparison to the impact of the experiment and only affected the differences in audio scores between both experimental contexts toward low audio quality levels (La1 and La2).
A univariate analysis of variance performed on the audiovisual MOS revealed a main effect of the interaction of the audio and video quality levels (F(14,1290)=82.6, p<0.01) and a significant impact of the experiment (F 1,1290)=75.2, p<0.01).
As can be seen in Figure 2, the impact of the experiment was significant for conditions of poor audio quality (levels La1 to La4) for which more optimistic ratings were given for the interactive context.
Coral colonies large enough for goby occupation— Acropora digitifera (~20-cm diameter; 315 cm projected planar area) and A. selago (~25 cm; 490 cm)—were removed from the substrate with a tungsten steel-wire saw and reattached to the reef using epoxy resin after use to minimise the ecological impact of the experiment.
The major impact of the experiments was counselling, and the evaluation (Ramböll, 2011) showed that there was a positive effect on employment rates for the educated group and a positive effect on the exit to education for the uneducated group.
The impact of this experiment on manipulating emotions was tiny, but it raises the question of where to draw the line on what's ethical with A/B testing.
To measure the impact of that experiment, Microsoft also maintains a similar vessel on land so it can compare how well that system fares over time.
