VOLUNTEER WORKERS

In recent years mental health clinics and mental hospitals have been using more and more volunteersnot only because of the shortage of personnel but...

VENTILATION CONDITIONS

Atmospheric conditions—primarily temperature, humidity, and air flow—constitute an important problem in industrial psychology and human engineering, since they have considerable influence on productivity, accident...

VIGOTSKY TEST

A test of conceptual thinking in which the subject classifies blocks according to different characteristicsdeveloped by the Soviet psychologist L. Vigotsky and introduced in...

VISIBILITY CURVE

A graph representing the sensitivity of the eye to different wavelengths of light. Two types of curves are usually constructed, one for daylight vision...

VISIBLE SPECTRUM

The range of electromagnetic waves visible to the human eye.Our sense of vision is activated by radiant energy emitted or reflected from objects. This...

VISUAL DEFECTS

Common visual defects so often affect behavior and adjustment that they are usually included in the field of psychology. Most of them are due...

VAGINAL ENVY

a psychological trait of males who long for the capacity to come to be pregnant and bear kids.

VALUE ANALYSIS

a form of content analysis of penned material consisting of a table, or other step-by-step notation, recording the frequency of appearance within the material...

VARIABLE-RATIO REINFORCEMENT SCHEDULE (VR SCHEDULE)

with regard to free-operant conditioning, a form of come-and-go reinforcement wherein a reaction is reinforced following a variant amount of reactions. The value of...

VASCULAR INSUFFICIENCY

failure of the cardiovascular system to administer a adequate amount of blood to the body's tissues. This might consist of big areas of the...

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