You must learn the slang

To study the psychological effects of comics on children one must first have more than a superficial and scanty knowledge of what is in them. For if in children's nightmares or in their play or in the productions in psychological tests, any association or reference occurs to the "Venusians" or "Voltamen," to "a syntho-shade" or to the precise instructions on how to "case wealthy homes" for burglaries, you will not understand the response if you do not know the stimulus.