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Dr.Feldman was interested in the effect of Valium on motor performance.He injected 30 rats in the experimental group with a small amount of Valium and 30 rats in the control group with saline solution.Following injection, he measured the rate of bar pressing by both groups of rats.On average, rats in the control group had 800 presses per hour and rats in the experimental group had 715 presses per hour.The same testing box was used for both groups of rats, but different student assistants tested the control and experimental groups.In this example, having two different student assistants test the two groups is a(n) _____ variable.
Heritability
The proportion of variation among individuals that can be attributed to genetic factors.
Single Intelligence
The theory that intellectual ability is a general cognitive capacity that can be measured and numerically expressed.
Mental Capacities
The cognitive abilities of an individual, including reasoning, memory, understanding, and problem-solving.
Creative Scientists
Individuals engaged in scientific inquiry who demonstrate originality, inventiveness, and the ability to solve problems through novel approaches.
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