SWORDC Mini-Conference Spring 2003
Room
9420
Social Science Centre
University of Western Ontario
25th April, 2003
PROGRAM
- ABSTRACTS
PROGRAM
9:00 - 9:20 Arrivals
9:20
-
Welcoming remarks and introductions
Chair of Morning Session: John Goyder, SWORDC Co-Director
-
Invited talk by David Bellhouse, Department of Statistics,
University of Western Ontario: "Developments in the
Analysis of Complex Surveys within the Canadian Statistical
Community."
10:30
- Session on projects at the proposal
stage:
-
Martin
Cooke, Department of Sociology, UWO. "Social Assistance
and Female Lone Parents: An Analysis of Durations and Transitions."
-
Byron
Lee, Department of Economics, University of Waterloo. "Educational
Efficiency and Returns to Education."
-
Amanda Franceschini, Department of Family Relations, University
of Guelph. "A Longitudinal Study of Family Relationships
as Mediators of Children's Schooling Outcomes."
- Luc
Boyer, Department of Sociology, UW. "Mapping Non-ignorable
Nonresponse Behaviour."
12 - 1:15 Lunch
Chair of Afternoon Session: Keith Warriner, SWORDC
Co-Director
1:30
- Session on works in progress
-
Zenaida Ravenera and Rajulton Fernando, Population Studies
Centre, UWO. "Family Transformation and Social Cohesion
Projects."
- Pat
Newcombe-Welch, SWORDC, and Tim Seifert, Faculty of Education,
Memorial University. "Big Country, Small Sample - What
can we safely conclude?"
- John
Goyder, UW Sociology, M.E. Thompson, Statistics and Actuarial
Science, and Shane Dixon, Sociology. "Scaling the Major
Group of the National Occupational Classification."
- - - - - - -- - - - - - - - -
Coffee Break - - - - - - - - - - - - -
- - - - - -
3:00 - Roundtable Session on the
RDC Application Process.
(A
outline of how the process works, and exchange of experiences,
tips and questions about getting approval to conduct an RDC
project).
ABSTRACTS:
Note: Not all participants submitted abstracts.
Morning
Session, Presententation Number 2
Byron Lee,
Department of Economics
University of Waterloo
Title:
Educational Efficiency and Returns to Education.
Abstract:
This
paper analyzes the relationship between educational efficiency
represented by the time taken of the individual above or below
the normal time taken to complete the degree and the returns
to education. It includes controls for the experience, years
of schooling, education credential level, field of study, occupation
other demographic variables and geographical variables. The
model clearly shows that there are earning gains with an increase
in educational efficiency. Previous models have failed to to
measure the unobserved ability of the individual. The resulting
coefficients on schooling and credentials may be more accurate
as it takes into account this potential bias. Educational efficiency
is assumed to be a signal (not taught through a university education).
As a result, since educational efficiency is positively correlated
with returns to education, this shows that it is (at least partially)
through this signal that earnings are increased.
Morning
Session, Presententation Number 3
Amanda Franceschini
Department of Family Relations
University of Guelph
Title:
A Longitudinal Study of Family Relationships as Mediators
of Children's Schooling Outcomes.
Abstract:
It is generally accepted that both the family and the school
play major roles in fostering the optimal learning and social
development of children and youth, with implications for later
well-being. However, in a climate of seemingly increasing demands
on time, decreasing resources, and increasing pressure to produce
measurable results, parents, educators, and other professionals
may find themselves questioning how to effectively nurture children's
success in school.
The objective of this study is to examine within-family processes
as mediators of children's schooling outcomes. Specifically,
positive and hostile- ineffective parent-child interactions,
parental support related to school, and children's general self-concept,
academic focus and pro-social characteristics are predicted
to affect children's academic achievement and social adjustment.
The Family-School Relationships Model (Ryan & Adams, 1995)
will be used as a theoretical guide to investigate predictor
and outcome relationships and individual differences in the
effects of these mediating variables. With cycles of teacher,
parent, and child self-report responses available two years
apart, the National Longitudinal Survey of Children and Youth
(N.L.S.C.Y.) will be used as a source of Canadian data. Namely,
cohorts from Cycles 1 and 3 will be examined. Structural equation
modelling will be applied as a statistical tool.
Morning Session, Presententation Number
4
Luc Boyer
Department of Sociology
University of Waterloo
Title:
Mapping Non-ignorable Nonresponse Behaviour.
Abstract:
Nonignorable nonresponse occurs if any value of a survey variable
of interest correlates with nonresponse behaviour, or if the
value of a survey variable of interest and the nonresponse behaviour
correlate to a common variable (internal or external to the
survey). Such conditions will generate a nonresponse error,
whereby the respondents' distribution for the survey variable
will differ from that of the population. Perhaps due to the
concern for inferential validity in a declining response rate
environment, researchers are now paying closer attention to
the relationship between nonresponse and nonresponse error,
than to nonresponse alone. Empirical investigations, still very
limited in number, are nonetheless predominantly conducted within
the methodologists' or the experimentalists' framework. While
nonresponse bias analyses or survey design impact analyses are
useful descriptions of nonresponse error, such investigations
are neither able to explain its occurrence, nor establish its
relationship to nonresponse behaviour. As a consequence, they
offer little insight into potential nonignorable nonresponse
mechanisms. Using the Waterloo Graduate Student Exit Survey,
in conjunction with Statistics Canada's Survey of Graduates
dataset, this exploratory case study will endeavour to generate
hypotheses that account for the relationship between students'
satisfaction levels, and their response behaviour to the exit
survey. By using Michalos' discrepancy theory to identify potential
specification or explanatory variables, the goal is to uncover
nonignorable nonresponse behaviour mechanisms.
Afternoon Session, Presententation Number 2
Pat Newcombe-Welch,
Statistics Canada,
South Western Ontario Research Data Centre,
University of Waterloo,
Tim
Seifert,
Faculty of Education,
Memorial University
Title:
Big Country, Small Sample - What can we safely conclude?
Abstract:
Statistics Canada provides survey weights along with its data
files and advises that the weights be used in order to produce
unbiased estimates. The survey weights are constructed so that
known subtotals, such as provincial populations and gender totals
are preserved. One aspect of this method is that the sample
respondents from a small province such as Prince Edward Island
will on average have much smaller weights than the sample respondents
from a large province such as Ontario. If a national statistic
is based on a subsample which contains relatively few respondents
from each province, although the weighted estimate will be theoretically
unbiased, the accompanying variance may be expected to be large
due to the large variability amongst the weights. Researchers
who experience this phenomenon may feel justified in using an
unweighted analysis. An example of this type from the National
Longitudinal Survey of Children and Youth (NLSCY) is presented,
in which it is demonstrated that it is possible to conduct a
weighted analysis and minimize the effect of variance inflation
by using provincial groupings as a variable in the model.
Afternoon Session, Presententation Number 3
John Goyder, M.E. Thompson and Shane Dixon
University of Waterloo
(Departments of Sociology, Statistics and Actuarial Science,
and Sociology respectively)
Title:
Scaling the Major Group of the National Occupational Classification.
Abstract:
Human
Resources and Development Canada developed in the early 1990s
a classification of occupations having a more sociologically
sensitive major groups structure than older codes such as the
CCDO of the 1970s. This National Occupational Classification
was updated in 2001, but the system is not used as widely as
might be expected. Researchers seem to want major groups that
are ordered into a scale, such as the Pineo, Porter, McRoberts
scale of 1977. In 2000, a study of occupational prestige was
collected in Kitchener-Waterloo, Ontario, with personal interviews
with 351 respondents. The survey included ratings of the 26
major groups of the NOC. The paper describes the construction
and validation of the scale. The resulting scale for NOC major
groups will be especially useful for researchers wishing to
scale the prestige of occupations on public use versions of
Statistics Canada data sets. Such files normally report only
the first two digits (i.e., the major group) of occupational
code.
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