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Singer-Loomis
Type Deployment Inventory

Acronym or
reference title

SL-TDI
When was it
initially created?


1981
Who authored the inventory?


June Singer, Ph.D.
& Mary Loomis, Ph.D.
Professional training of creator(s)

Psychologists & Jungian
Analysts

What does it measure?
Extraverted Sensation;
Introverted Sensation;
Extraverted Intuition;
Introverted Intuition;
Extroverted Thinking;
Introverted Thinking;
Extraverted Feeling;
Introverted Feeling
Perceiving
Judging
Introversion
Extraversio
n

How does it measure?
Eight Likert scales


How are results created?
Scores are recorded in a pattern related to the eight scales. Scale scores are transferred to a different page to compile to show type mode, function, extraversion and introversion and judging and perceiving scores. Final step involves calculating percentage scores for each scale and recording on visual graphic to show relative usage of all eight of Jung's type capacities.

Evidence of reliability and validity

Based on a sample of 1534 cases, Alfa coefficients of reliability for the orientations and attitudes are Perceiving =.90;
Judging =.89;
Extraversion = .90;
Introversion =.89.

Reliability of the four function scores are:
S =.80; N =.84; T =.84; F =.77.
The eight Type Mode scales scores are: ES=.68; IS =.67; EN=.79; IN=.73; ET =.72, IT=.74; EF= .76; IF = .59.

Time to take and
hand score

35-45 minutes


People who
use it most
HRD trainers, clinicians, educators and researchers


Purpose of usage
Provide a profile of all eight Type Modes and indicate relative development of each. Thousands of possible profiles, each representing a normally functioning individual who legitimately differs from others in specific ways

Typical users

Management development, leadership training, team building, career planning and clinical practice with individuals and families

Access requirements
BA and tests and
measurement class or qualification training

Publisher
Moving Boundaries, inc.
Gresham, OR

Cost to administer

Booklet (reusable) =
$3.00 each plus
Answer Sheet &
Scoring Form =
$2.00 each or
Computer Form =
1.50 each


Source material
1. June Singer & Mary Loomis,
Technical Manual for the
Singer-Loomis Type Deployment Inventory (1996)Gresham, OR:
Moving Boundaries, inc.

2. Larry & Elizabeth Kirkhart,
Statistical Performance of the Singer-Loomis Type Deployment Inventory; An Interim Report (1998)
Gresham, OR
Moving Boundaries, inc.
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