II. Descriptive Sources of Secondary Statistical Data
Definition of secondary data, 16; Sources of sec-
ondary data, 16-19.
III. Tests to be Applied to Secondary Statistical Data
The question of bias, 19-20; The closeness of ap-
plication, 20; Exclusiveness or inclusiveness, 20–
22; Nature of units, 22-25; Accuracy with which
reported, 25; Accuracy with which determined,
26-27; Accuracy of determination, 27-32.
IV. Considerations of Importance Prior to the Collec-
tion of Data
The statistical approach, 32; Availability of data
and the relation to others already collected,
32-37; Sanction of collection, 38-39; Type and
character of informants, 39; Organization, money,
and the time available, 40.
V. The Collection of Primary Statistical Data
1. Purpose and Plan
2. Methods of Collecting Data (descriptive)
3. The Collection Process (functional)
(1) Who Are to be Canvassed
(2) The Schedule
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