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R.A.L. Consulting Limited - Survey Research
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Our
surveys offer detailed insight into the perceptions of your target population.
We work closely with you to find out exactly what you need to learn
from your respondents. We can offer economical mail-out surveys as
well as state of the art computer-assisted telephone and Internet based
survey services. Whatever method
is chosen, the same level of custom service is provided. Custom
Design in Survey Research Every
aspect of the survey work we do at R.A.L. is tailored to fit your
needs. Starting with the design of a study, we work
closely with your project team to understand your concerns. We take the time to listen, ask questions,
and learn what you really need to know from survey research. This same spirit carries throughout all phases
of a study -- from the collection of data to the analysis and reporting
of results. In the data collection
phase, for example, we can do more than simply ask a series of questions. We can probe your respondents' needs in ways
that reveal their subtlety and nuance, not just the broad outlines. In our reports we do more than summarize a
set of percentages; we interpret the overall pattern of findings, placing
the results in their proper context through the use of easy to understand
graphics and charts. Our
focus is upon answering your planning questions scientifically, using
statistically sound Questionnaire
Design The
design of your questionnaire is perhaps the most crucial part of a survey. Great care must be taken to ensure that the
questions ask what you really want to know.
We will work in close collaboration with you to develop a set of
instruments that will yield useful data to guide your deliberations and
assist in planning decisions. Content
will be will be worked out in collaboration with your project team, keeping
an eye to both current concerns and possible comparisons with other available
data. Sample
Design The
characteristics of the target population and budget shape our approach
to sample design. The simplest
approach is send a questionnaire to every respondent in the target population. While this has the obvious benefit of offering
every respondent an opportunity to take part in the survey, this approach
is also the most expensive. A
less expensive approach is a simple random sample but this approach can
produce poor results in areas or groups with low response rates or few
potential respondents. A
more efficient and usually our preferred sampling design is to combine
the best features of the two approaches in what is called stratified sampling. The central idea is to distinguish between
those groups, or strata, that have relatively few members and those who
have substantially more. Compared with surveying everyone, the stratified
approach essentially reduces the overall sample size while maintaining
a viable number of respondents in the smaller areas or groups.
Compared with the simple random sample, this approach concentrates
on the number of respondents in the areas where they are most needed for
the effective analysis of the data. The
potential savings on mailing and data entry costs using a stratified sample
can be substantial. These savings
are, of course, achieved at the expense of some loss in accuracy of the
estimates for areas where respondents are most numerous, but the accuracy
remains high in these cases, exceeding that of any for the smaller areas. Appropriate weighting of the data will permit
estimates accurate at approximately plus or minus 3%. Data
Analysis In
analyzing the data from the survey we will use SPSS, the most widely used
statistical analysis package. With
it we will perform the necessary frequency distributions, demographic
breakdowns, as well as prepare other relevant cross-tabulations. In addition, we have broad experience with advanced statistical
techniques and their effective presentation, including Multiple Regression,
Logistic Regression, Analysis of Variance, Factor, and Cluster Analysis. These techniques can aid in understanding the
underlying structure of the survey responses. Since
tables and other numerical displays are often hard to digest, we set out
the findings in easy to read charts and graphs created through PowerPoint. Our consultations ensure that the final report
will feature the types and depth of analysis you require and presented
in the graphic formats you prefer. Presentations and Report The
report is a full written account of the survey, its results and their
interpretation, complete with charts and graphics. Going beyond the simple tabulations usually offered in reports,
we provide a thorough understanding of the data and what they mean for
your concerns. This understanding
is based on solid statistical analysis, not quick generalizations from
a frequency distribution or cross-tabulation.
Along with the report we make also deliver the full data file, set up as either an SPSS system file and or rectangular file in ASCII format according to your preference. © R.A.L. Consulting Limited, 2008 |
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