On a clear, dark night, a person with normal vision can detect a candle flame 15 km away 50% of the time. This illustrates the approximate _____ for vision.

A) just noticeable difference
B) relative threshold
C) psychophysical boundary
D) absolute threshold


D) absolute threshold

Psychology

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Which is true with regard to psychological "health" during adolescence?

a. Most adolescents suffer at some point from some sort of significant psychological disturbance. b. Few adolescents who are psychologically disturbed were maladjusted before they reached puberty. c. Adolescence is a time of heightened vulnerability for some forms of psychological disorders. d. Adolescents are far more likely than adults to experience some sort of psychological disturbance.

Psychology

The most comprehensive evaluation of sleep is performed by a(n) a. polysomnographic evaluation

b. actigraphic evaluation. c. electromyographic evaluation. d. electroencephalographic evaluation

Psychology

A middle-aged couple sought sex therapy after consulting their physician, who recommended that they see a psychologist. After a thorough evaluation, the psychologist recommended a technique called sensate focus

How will the psychologist explain this technique? a) "I want both of you to spend more time daydreaming about sex-related themes." b) "You need to spend more time engaged in physical activity so you can overcome the stress created in your lives." c) "The focus of the therapy is on the ability to achieve a zone of compatibility in which you are both thinking the same thing simultaneously." d) "At the beginning of therapy you need to become reacquainted with the pleasures of tactile contact, so you will explore each other's bodies."

Psychology

Harpending and Sobus (1987) suggest that some personality disorders can represent behaviors that were once adaptations. They explicitly cite ______ personality disorder and ______ personality disorder.

a. psychopathic; histrionic b. schizoid; histrionic c. psychopathic; narcissistic d. schizoid; narcissistic

Psychology