While still operating as an IAP project, a report
was produced that described the distribution of dates of
publications of the research studies analyzed for inclusion in Dr.
Carroll's 1993 book. This original report can be found by
clicking
here. An edited version is provided
below.
Description:
An
inventory of Carroll’s seminal treatise (1993) on the
structure of human cognitive abilities identified 509 different
referenced datasets.
The
figure below presents the number (count) of data sets by year of
publication. A review of the figure suggests that Carroll's
analyses was based primarily on pre-1985 studies.
Summary descriptive stats revealed the
following:
- Mean
year of publication = 1964.87
- Median
year of publication = 1967
- SD of
year of publication = 14.45
- Earliest
date = 1927
- Most
recent date = 1991
- Range of
year of publication = 64
Conclusions:
Carroll’s conclusions are based on datasets primarily
from 1927 to the mid-1980’s.
Approximately 25+ years of contemporary research ((1980-2008)
is not reflected in Carroll’s meta-analyses.
There
is a need to update and extend Carroll’s work into the
future.