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The root page BlabC:BayesiaLab Home could not be found in space BayesiaLab.

The menu Adaptive Questionnaire launches the wizard depicted bellow for the specification of the options of the adaptive questionnaire.

It lets the user to indicate the target node and possibly a target state to perform an adaptive questionnaire based on a particular target value. It is also possible to precise the number of monitors to display (the ordered list of questions), to force the removal of previous variable observations and to save these options in the BayesiaLab settings. This wizard also allows editing the costs associated with the observation of the variables.

Once the adaptive questionnaire is launched, a new toolbar is displayed:


The button  resets the adaptive questionnaire.

The button  stops the adaptive questionnaire, deletes all the monitors and removes all the observations.

Adaptive Questionnaire Based on a Target Variable

The adaptive questionnaire allows an automatic and dynamic organization of the monitors while taking into account what information is being contributed to the knowledge of the target variable and the corresponding cost of the questions. The target monitor appears with a pink background at the top of the list, followed by the monitors ranked by their relevance.

The monitors of the observed variables appear at the end of the list (grayed) in the order of observation. The last observed variable then appears just after the last most relevant variable. It is possible to remove an observation or to change the observed value by double-clicking on the monitor. It is also possible to observe a variable that does not appear in the proposed list by monitoring it manually.

The translucent nodes are never proposed to the user.

Adaptive Questionnaire Based on a Particular State of the Target Variable

This questionnaire is similar to the previous one but the questions' worth is measured on the knowledge of a particular value of the target variable, and not on the global knowledge of that variable. When the target is a variable only having two states, then these two questionnaires are equivalent.