Cattell's 16 Personality Model
Without a doubt, Cattell’s model is one of the most famous and his attempt to describe personality reached the masses through his famous test: the 16 PF. Of course, nowadays we don’t use Cattell’s original version, but people maintain a great part of the test’s initial spirit.
On the other hand, Cattell stands out for proposing two types of intelligence: fluid intelligence and crystallized intelligence. Fluid intelligence is closer to the current concept of intelligence. For example, one would use this type of intelligence to solve logical problems. The individual’s personal experience has little importance. What matters more is their expertise to work on the challenge itself. On the other hand, crystallized intelligence gathers all of the person’s experience. Hence, it’s useful for answering questions and problems associated essentially with memory.
The topic of intelligence is a very interesting one, as is Cattell’s development of it. In this article, we’re going to focus on his interesting personality model and the questionnaire he uses to apply it, the 16 PF.
Cattell and the 16 PF
The study of personality is controversial within the field of psychology. In this regard, this kind of property of the self, conditioned by the environment and genetics, has given way to countless theories that have battled over hegemony.
Not only has the origin of personality been discussed (genetics-environment), but there’s also an open debate about the extent to which personality can mutate or influence one’s behavior. Another interesting debate about our personality is related to its division, segmentation, and dynamic.
In this sense, we could consider Cattell the synthesizer of the work done by British and American authors in the field of basic mental and personality skills. He used a methodology that was very powerful at the time for the scientific study of intelligence as well as the study of personality. His objective was to isolate different primary factors.
For his studies, he used 3 sources as data recollection techniques.
- Q (questionnaires).
- L (ratings or interviews).
- T (objective tests).
The three stages of Cattell’s model
Methodologically, his work was characterized for being a serious and rigorous attempt at analyzing and creating a solid, stable, and also reliable model from the three sources we have listed. Also, the development of his model can be understood if described in three stages:
- The first stage: It’s nothing more or less than 171 personality traits. He identified all of these traits from an even longer list made by Allport and Odbert a few years earlier. In this particular list, these two researchers included all of the terms related to personality which were found in the two main English dictionaries of the time.
- The second stage: It focused on the information obtained in the ratings or interviews in order to give a theoretical content to these factors.
- The third stage: He used the information gathered from the questionnaires (Q) and the objective tests (T). After all of the content and mathematical analysis, he concluded that there are 16 personality factors. These are dimensions in which we can all classify in one way or another. Mathematically, they are the logical product of a first-order factorial analysis. This is presented in a bipolar way:
- Warmth (high-low).
- Reasoning (high-low).
- Emotional Stability (strength of the self-weakness of the self).
- Dominance (dominance-submission).
- Liveliness (surgency-desurgency).
- Rule-Consciousness (high super-ego strength-low super-ego strength).
- Social Boldness (Threctia/shyness-Parmia/boldness).
- Sensitivity (Premsia/sensitivity-Harria/toughness).
- Vigilance (Alaxia/trust-Protension/distrust).
- Abstractedness (Praxernia/pragmatism-Autia/imagination).
- Privateness (Artlessness/shrewdness).
- Apprehension (guilt prone-untroubled).
- Openness to Change (radicalism-conservatism).
- Self-Reliance (self-sufficiency/group adherence).
- Perfectionism (High Self-Concept Control- Low integration).
- Tension (Low Ergic Tension-High Ergic tension).
Second-order factors in the 16 PF
The personality factors we have listed above aren’t independent (orthogonal). Instead, they present positive and negative correlations, giving rise to other basic factors (second-order factors):
- QS1. Introversion vs Extraversion.
- QS2. Anxiety vs Tranquility.
- QS3. Susceptibility vs Tenacity.
- QS4. Dependency vs Independence.
Then, based on these first and second-order factors, Cattell created one of the most well-known and widely used questionnaires of all time. On the other hand, Cattell classifies these personality traits based on two aspects:
- Origin: hereditary vs environmental.
- Content: temperamental, motivational, and interests.
Thus, this author and researcher already defended an idea which is currently still accepted by most personality specialists. This idea also states that the composition of one’s personality is the product of their genetics and the environment in which they developed.
Four scales: controlling anomalies
Finally, note that in order to control possible anomalies in the answers, the 16 PF uses four scales: response style scale (reliability and validity), image manipulation (to control social desirability), acquiescence (to control the tendency to give the same answer regardless of the question), and infrequency index or chance index (to detect questionnaires that have been answered at random and invalidate them: it’s based on the consistency of the answers within each factor).
Cattell’s merits can be divided into two main branches, which are united in a very intimate way. On one hand, there’s his intention of precisely measuring or giving mathematical shape to a model. In this case, it’s to personality. An undoubtedly difficult task, since we’re talking about something that can only be measured indirectly.
Also, in these measurements, there is almost always a contaminating variable. In most questionnaires or psychometric tests (with an acceptable validity and reliability, such as the 16 PF) the individual is the one who emits the judgment to answer the question asked. In this sense, let’s keep in mind that self-perception oftentimes has little to do with reality.
Also, Cattell’s second great merit has to do directly with the articulation of his model. History, although sometimes mistaken, tends to be a good filter for humanity to leave behind all useless occurrences or crazy ideas that constitute a dead end. This has not happened with Cattell’s model, and this is why we wanted to dedicate this article to him.