Ultraviolet rays are potentially harmful to us primarily due to their

high frequency.

If you're a Gestalt psychologist, you will be most interested in

If you're a Gestalt psychologist, you will be most interested in

Which of the following statements is true of the adrenal glands?

They're ductless glands.

The _______ principle encourages us to resolve a set of stimuli, such as trees across a ridgeline, into smoothly flowing patterns.

continuity

Which of these neurotransmitters works to inhibit body processes, affect our moods, and help us fall asleep?

Serotonin

The part of the cerebrum that controls voluntary movements is located in the _______ lobe.

frontal

The school of psychology that emphasizes direct observation rather than introspection is

behaviorism

If you're a psychologist who is fascinated by how alcohol acts on the nervous system to alter perception, you probably follow the _______ perspective.

biological

When you notice the soft sound of rain on the roof, it has crossed a perceptual line called your _______ threshold for detecting an auditory signal.

absolute

The term _______ is used to indicate the frequency level of a sound.

pitch

The part of the eye that's similar to the film of a camera is the

retina

The hormone that produces male secondary sex characteristics is

testosterone.

As a research psychologist, you're interested in studying concepts of gender role among immigrants of Italian descent as compared with those of Irish descent. You probably have a _______ perspective

As a research psychologist, you're interested in studying concepts of gender role among immigrants of Italian descent as compared with those of Irish descent. You probably have a _______ perspective

Suppose you're studying levels of job stress and measures of job efficiency in a nursing home. Which one of the following statements best represents a data comparison that demonstrates a positive correlation?

As stress levels increase, job efficiency increases.

Suppose you're studying levels of job stress and measures of job efficiency in a nursing home. Your hypothesis is that increasing job stress appears to lead to reduced job efficiency. In that case, job stress is the _______ variable.

independent

One cold day, you bundle up in a sweater and a heavy coat. After a while, the weight of wearing your winter gear fades away because _______ sensors in your skin adapt to the heavy clothing.

pressure

When you step out of the bright sunshine into a dark movie theater, your vision gradually adjusts to the relative gloom. This process is known as _______ adaptation.

sensory

Among William James's contributions to the science of psychology is that he

wrote the first American text in psychology.

I propose to study the relationship between self-esteem and reading skill levels among students at Clairmont High School. At Clairmont, about 14 percent of the student body are seniors, 24 percent are juniors, 30 percent are sophomores, and 32 percent are freshmen. What kind of sampling approach will I be most likely to use?

Stratified sampling

Suppose you've designed an electrically operated security system that includes sensors and activators. Signals are sent from sensors to an activator that sounds an alarm. This signal or message can be compared to impulses sent along _______ nerve paths.

afferent