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Canada Survey of Giving, Volunteering and Participating, 2004 – User Guide
12.0 Weighting
A statistical weight was placed on each record of the data file. This weight indicates the number of
persons in the population represented by the sampled unit.
Since the 2004 Canada Survey of Giving, Volunteering and Participating (CSGVP) was conducted as a
Random Digit Dialling (RDD) survey in the 10 provinces while it used a sub-sample of the Labour Force
Survey (LFS) sample in the three territories, two different sets of weighting procedures were used.
12.1 Weighting for the provincial component
The weighting for the provincial component consisted of several steps:
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calculation of the basic telephone weight;
an adjustment for unresolved telephone numbers;
dropping out-of-scope records;
an adjustment for the number of telephone lines in the household;
adjustments for non-response (household level and person level);
an adjustment for selecting only one person from the household;
an adjustment for sub-sampling non-volunteers;
an adjustment for outliers; and
an adjustment to make the population estimates consistent with known province-age-sex
totals from the Census projected population counts for persons 15 years of age and over.
The details of these steps follow.
1. Calculation of the basic telephone weight
The initial weight is the inverse of the probability of selection of the telephone number, calculated
as follows within each stratum:
⎛ total number of possible telephone numbers from working banks ⎞
⎟⎟
w1 = ⎜⎜
number
of
sampled
telephone
numbers
⎝
⎠
There were 120,650 phone numbers selected in the sample.
2. Adjustment for unresolved telephone numbers
Before data collection, the 120,650 phone numbers underwent a screening process; 9,154
business numbers and 20,775 non-working numbers were dropped, leaving 90,721 telephone
numbers for data collection. Each of the remaining records either had an initial status equal to
residential or the initial status was unknown.
At the end of the data collection period, call history information obtained during collection was
used to determine the final status of each record. Each unit was identified as out-of-scope, inscope or unresolved. The weights of the resolved and out-of-scope records were adjusted to
account for the unresolved records and the unresolved records were dropped. The adjustment
was performed at the stratum level separately for those with initial status of residential and those
with initial status unknown (see Section 5.2 for description of strata). A total of 8,837 unresolved
records were dropped, leaving 81,884 records.
The weights were adjusted as follows within each stratum and initial status:
Special Surveys Division
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