Research and methods: Type of threat 2. Children were randomly assigned to one o

Question

Research and methods: Type of threat 2. Children were randomly assigned to one of three conditions. The conditions were model, an aggressive model or a nonaggressive model. equal number of males and females in each condition. The children in the three conditions were matched on levels of aggression as rated by their teacher and the the model played with Toys for 10 minutes while in the aggressive condition the model played with the Toys for minute and acted aggressively toward a Bobo doll for 9 minutes. After being intentionally frustrated by the experimenters, the children were then allowed to play in a room full of toys a Bobo level of verbal and physical aggression was measured by independent observers. DV. Potential Confound (threat to internal validity- Type of threat

Explanation / Answer

Independent variable Is the variable that is changed or manipulated in a series of experiments.

This variable is hypothesized to be the cause of a particular outcome of interest. The dependent variable, on the other hand, depends on the independent variable, and will change (or not) because of the independent variable.

A dependent variable is the aspect or subject of an experiment that is influenced by the manipulated aspect; an outcome measured to see the effectiveness of the treatment.  In this example, the independent variable is tinker toys group.

The dependent variable is the thing that we want to measure—in this case, aggressive behavior.

A major threat to the validity of causal inferences is confounding: Changes in the dependent variable may rather be attributed to the existence or variations in the degree of a third variable which is related to the manipulated variable.

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