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I__. - International Military Testing Association

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(a) The systems are complex: This means that they contain many variables that are interconnected<br />

by a relational network rather than by single unidirectional relations. Given one input<br />

change, the network between the variables causes not only a main effect but several side effects<br />

that also have to be taken into consideration.<br />

(b) The systems are nontransparent: This means that the relational network connecting the<br />

variables one to another is not shown to the subjects. Therefore the subjects have to generate<br />

hypotheses about the effects of their decisions, which they should then test against the feedback<br />

data.<br />

(c) The systems are dynamic: This means that the variables change their state over time,.even<br />

if there is no input change. As a consequence, the effects of input changes differ depending on<br />

the actual system states.<br />

(d) The systems are meaningful: This means that the variables and their interrelations are<br />

implemented in a system to correspond to a domain of reality. The subjects can use their<br />

domain-related knowledge to generate hypotheses.<br />

4.2 Control strategies and derived measures<br />

Due to the differences between these demands and the demands of test items, it is to be expected,<br />

and is substantiated by empirical data, that performance in system control is not predictable by<br />

intelligence test scores (see Dijrner & Kreuzig, 1983; Darner, 1986; Funke, 1983; Putz-Osterloh,<br />

1981).<br />

As DSrner (1986) argues, strategies in system control are determined by a superordinate type<br />

of intelligence, the so-called “operative intelligence”. This type of intelligence refers to the<br />

construction and adaptive use of, and control over, subordinate processes such as information<br />

gathering, hypothesis testing, planning, and decision making.<br />

Different parameters of individual strategies are combined to evaluate the control over<br />

subordinate processes, e.g. the frequency of correct verbalized hypotheses (correspondent to<br />

system reality) and the rareness of false or irrelevant ones. These parameters are analyzed and<br />

summed up over subsequent time intervals to evaluate control and adaptation over time.<br />

In the following, two examples of complex abilities which can be diagnosed from decisionmaking<br />

and from thinking-aloud data are defined and operationalized.<br />

Ability to organize<br />

High organizing ability is defined by the frequency of prospective decisions to prevent<br />

undesirable system states, the rareness of false decisions, and the coordination of different<br />

decisions to reach more than one goal.<br />

In the economic system, the following parameters are combined: the rareness of isolated<br />

decisions, the frequency of central decisions which directly influence one goal variable, and<br />

the frequency of coordinated (in relation to the goal variables) decision patterns over time.<br />

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