He preferred to be addressed as princeps
Answer:
Internal validity.
Explanation:
Internal validity is the study in which trust relationship is build between treatment and outcome. This relationship is known as <em>cause-and-effect. </em>
In this type research, the studies are based on whether the finding is questionable or not. The research which can overrule the possibility of alternative explanations of our findings is internally valid.
The threats of internal valid study are:
- <u>Natural Improvement </u>
- <u>Maturation</u>
- <u>Historical Events</u>
- <u>Placebo effects</u>
- <u>Nonspecific effects</u>.
So, the correct answer is 'Internal validity'.
Both Brazil and Columbia are neighbouring countries with Peru and Venezuela.
Hope my answer helps :)
His family's high rank enabled Ibn Khaldun to study with the best teachers in Maghreb. He received a classical Islamic education, studying the Quran, which he memorized by heart, Arabic linguistics; the basis for understanding the Qur'an, hadith, sharia (law) and fiqh (jurisprudence). He received certification (ijazah) for all of those subjects.[18] The mathematician and philosopher Al-Abili of Tlemcen introduced him to mathematics, logic and philosophy, and he studied especially the works of Averroes, Avicenna, Razi and Tusi. At the age of 17, Ibn Khaldūn lost both his parents to the Black Death, an intercontinental epidemic of the plague that hit Tunis in 1348–1349.[19]
Following family tradition, he strove for a political career. In the face of a tumultuous political situation in North Africa, that required a high degree of skill in developing and dropping alliances prudently to avoid falling with the short-lived regimes of the time.[20][citation needed] Ibn Khaldūn's autobiography is the story of an adventure, in which he spends time in prison, reaches the highest offices and falls again into exile.[citation needed]
Just like in any other country in the world. Senegal used to be a French colony which is why there are still a lot of French traces in this African country, especially when it comes to food. People in Senegal have a lot of things they can do - explore the beautiful nature that surrounds this country, the sea, the animals, etc. Also there are some modern buildings so not all is traditional. Additionally, prostitution in Senegal is legal, so this is also one of the ways to have fun in Senegal.
