This document provides a summary of the history and development of personality and career assessment tools, with a focus on the company Professional DynaMetric Programs (PDP). It describes key events and individuals in the field dating back to 400 BC, and then outlines the founding of PDP in 1962, the development of its tools and software over the decades, expansion globally by the 2000s, and continued innovations in recent years including new language options and online platforms.
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Pdp Timeline
1. Beginnings
Carl Jung
PsychologicalTypes
400
B. C.
Hippocrates
Four Traits: Choleric, Sanguine, Phlegmatic,
Melancholy
1921
Bruce M. Hubby born1933
Raymond Cattell
Personality:A Systematic,Theoretical, and Factual Study
1950
Abraham Maslow
Motivation and Personality
1954
Maxwell Maltz, MD, FICS
Psycho-Cybernetics
PDP incorporated
in Colorado as
Personal Dynamics
Profiles
Research
methodology
“Monograph
No. 4 Independent
Studies of the
Reliability and
Validity of
Responses to the
PDP Survey” by
Samuel R. Houston,
PhD, and Dudley
Solomon, EdD, is
published.
Federal guidelines
released regarding
the implementation
of tests and
assessments for US
employers.
1977
Case studies
completed by
Bonnie D. Bass, EdD,
Jerry L.Terrill, PhD,
and
Linda Marten, PhD
1960
Bruce attends AMA psychometrics seminar1962
Bruce M. Hubby is introduced to Samuel Houston, PhD,
by Dudley Solomon, EdD, then president of National
Jewish Hospital, to explore researching and developing a
new people-management instrument.
Five Research Stipulations
1. An 80 percent minimum correlation
coefficient of non-commingled trait
descriptors
2. Single-word stimuli responses
3. A five-point Likert response scale
4. A variable norm
5. Confirmation of results with the survey
taker for validation purposes
Research begins on Trait Pairs.
PDP name, slogan, and logo first used
EC-101 released to score and hand plot
ProScan® Data Sheet
1978 19791976
2. PDP changes its
name from Personal
Dynamics Profiles
to Professional
DynaMetric
Programs.
PDP software
development (DOS)
begins in earnest,
with Curt Burris as
programmer.
Otrona ATTACHE
portable computer
released for $3,995,
the first computer
affordable for
business use
PDP begins using
The Source, a
predecessor to the
internet for scoring
and compiling
ProScan narrative
reports.
Bonnie D. Bass,
EdD, University
of San Francisco,
completes
her doctoral
dissertation based
on ProScan study
of 150 registered
nurses in an acute
care hospital
Corporate
headquarters
relocates to
Woodland Park,
Colorado
PDP expands into
Australia.
Jan C. Perich
joins PDP
corporate staff.
JobScan® released—
an employee
screening/selection
module
PepScan® released—
a computerized
performance
evaluation module
PDP expands into
Canada.
Brent W. Hubby joins
PDP corporate staff.
Dynasys® Version
of PDP software
(Windows 3.1)
released
TeamScan®
released—a
team-building
module utilizing
groups of
ProScans for
team analysis
William “Skip” Mann,
a supporter and
champion of PDP
since its inception,
joins the staff as
CEO/CFO and later
becomes 50 percent
partner.
First prototype
franchise
purchased by Joe
Dowd
EC-201 released
EC-301 released
1980
1981
1982
1983
1984
1986
1987
1988
1989
Post Normative Study
published by
Malcolm L.Williamson,
PhD, and Bruce M. Hubby,
founder and president