Sampling theory as used in the determination of psychological trends in Vol. mail

Abstract

This study is based on experience in the Federal government agencies and in analyzing White House mail. Validity, adequacy of sample, and temporariness or permanency of trends are briefly indicated and some of the statistical formulae cited. A mail analysis, as illustrated, covers such items as geographical division, occupation, sex of writer, racial, type of communication, addressee, subject, motivation, etc. (PsycInfo Database Record (c) 2025 APA, all rights reserved)