To address issues of trustworthiness, narrative researchers triangulate their data. use only valid instruments. rely on inter-observer reliability. rely on a single participant to assure validity.

The correct answer is option number 1: Researchers triangulate their data.

In Quantitative Studies, trustworthiness refers to the validity and reliability of the data used or analyzed. Since quantitative researchers don't have at their disposal valid instruments with pre-established metrics related to validity and reliability, they often need to triangulate their data in order to firmly establish that the data is credible, transferable, confirmable, and dependable.

the arab empire adopted the muslim religion as their main belief. arabs would influence the people from the territories they invaded towards islam (the muslim belief).

nevertheless, throughout the history of the arab empire, rulers brought intellectual individuals from other religions to their centers of learning. these other foreigners included jews, christians, greeks, persians, and indians.   these resulted in the adoption of important knowledge developed by these cultures by the arabic empire. for example, the works of aristotle were translated from greek to arab and indian scientists brought the numerical concept of "zero" to the arabs.

nowadays, 93% of the arab population is muslim, which at the same time is subdivided in sects including the sunni, zaini, alawi, shia. the remaining 7% is composed mainly of christians.