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>
Insecure/Resistant children show distress when taken away from their caregivers. When this occurs, they will likely try to call the caregiver's attention by crying or yelling and, when reunited, they might show resistance. For this reason, this type of attachment is also called ambivalent.
Rivers were attractive locations for the first civilizations because they provided a steady supply of drinking water and made the land fertile for growing crops. Moreover, goods and people could be transported easily, and the people in these civilizations could fish and hunt the animals that came to drink water.