Noelle wants to measure her cat's auditory threshold. She quietly whispers Ernie's name and slowly increases her volume until the cat turns and looks at her. Over the course of several days, she whispers ten times at each volume. The volume at which Ernie responds five times is called:
A) the absolute threshold.
B) the just noticeable difference.
C) Weber's law.
D) the relative threshold.
A) the absolute threshold.
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The stage of sleep characterized by the HIGHEST level of brain activity is stage _____ sleep.
A) 4 B) 5 or REM C) 2 D) 1
Weber's law states that:
a. the ability to notice a difference in the magnitude of two stimuli is a constant proportion of the size of the standard stimulus b. the ability to detect a stimulus depends on the proportion of correct hits to false alarms c. direct perception relies on properties of the environment that remain constant d. affordances are properties that arise as organisms interact with their environments
Your friend is contemplating a divorce but is concerned about the negative effects of the divorce on the children. Your friend should be aware of the research showing that ____
a. ?the divorce itself is the most important factor in the later difficulties among children from homes where divorce occurred b. two parents who fight with each other create as much distress in children as the experience of divorcing parents? c. the negative effects of divorce are greater for the parents than they are for the children? d. the negative effects of divorce are largely a thing of the past?
Daycare providers who are working with boys and girls should expect to find
A) that boys are more flexible and have better fine-motor skills. B) that the boys tend to have higher activity levels. C) that the girls will use more of the physical space. D) that the girls are more physically aggressive.