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Last modified by Carina Enke on 14.01.2024
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4 As an example, a typical application task is created. The goal is to calculate the distance travelled by a vehicle based on speed and time. The speed is dependent on the vehicle type.
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21 In the example, the [[text variable>>doc:ONYX.Erstellung von Testinhalten.Aufgaben.Variablen verwenden.Text Variables.WebHome||shape="rect"]] {transport} will be randomly initialised with one of the following values: "bike", "bus", or "train". The [[numerical variable>>doc:ONYX.Erstellung von Testinhalten.Aufgaben.Variablen verwenden.Numerische Variablen.WebHome]] {speed} is randomly selected from a value range. Thus, the value range for the speed {speed} should be set in dependence of the selected vehicle {transport}, since a "bike" is generally slower than a "train".
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29 For the dependent value setting, we use the variable condition. In the condition, we can define the value range for the variable {speed} depending on the selected value of the variable {transport}. For the bike ({transport}="bike"), for example, a value range of 10 to 30 (km/h) was set.
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37 The given values of the task are integrated into the task text by specifying the variable name ({transport}, {speed}, and {hours}). In the example, the variable is included in a task of the type [[calculation interaction>>doc:ONYX.Erstellung von Testinhalten.Aufgabentypen.Berechnungsaufgabe.WebHome]].
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39 The variable with the correct solution {distance} is bound to the gap.
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47 One of the defined values will be randomly chosen for each participant and each test attempt. In the example, the value "bike" was randomly inserted, which is why a speed in the value range of 10 to 30 (km/h) was selected.
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