Raymond Catell's work sprouted from Gordon Allport. Allport proposed that there are 4,500 traits there is to humans. Catell worked on by narrowing down this numbers. He reached to as low as 171 traits. But he reasoned out that some traits are synonymous. For example, being caring, warm and nice are synonymous traits. Instead, he grouped like traits into 16 personalities. These are the following: <span><span>abstractedness, warmth, apprehension, emotional stability, liveliness, openness to change, perfectionism, privateness, intelligence, rule consciousness, tension, sensitivity, social boldness, self-reliance, vigilance and dominance
</span>Through the </span><span>sixteen personality factors questionnaire (16pf), you are asked about your responses and preferences on situational scenarios. You answer through a scale from high to low. You can answer strongly agree, agree, neutral, disagree and strongly disagree. Your answers are calculated through factor analysis and you can know your personality type.</span>
Explanation: Each person has a role to play in a particular occupation or position , these roles define what is expected from each individual in terms of how they are to behave in particular situations. Roles depends on what position a person has for example a manager has to act in particular way in order to manage the employees. A teacher has a role to play in school. A sister has a role to play amongst her siblings so each position we hold has expected roles that need to be fulfilled.
Researchers in life-span development have a special concern with studies that focus on the relation of age to some other variable.
<h3>What is meant by lifespan development?</h3>
This has to do with the study that is focused on the ways that people would grow and also change during the course of their lives. This is the type of study that would be involved in the patterns of growth experienced and the ways that people would change over the course of their lives.
Hence we can say that researchers in life-span development have a special concern with studies that focus on the relation of age to some other variable.
