The rational/theoretical model of test construction requires developers to start with a clear idea of a trait and then design items that assess the trait according to that idea. This approach differs from the in which researchers begin with two or more criterion groups and examine which items best distinguish them from each other.

Prior to 1994, rwanda's ethnic population was composed of a. a tutsi minority and a hutu majority b. a hutu minority and a tutsi majority c. an even number of hutus and tutsis d. a rwandan majority with hutu and tutsi minorities select the best answer from the choices provided. a b c d

The controlled use of fire by hominids: (a) limited the expansion of hominids into certain environments, such as dry grasslands. (b) decreased the amount of food energy available in the hominid diet. (c) contributed to geographical expansion and food production techniques in positive ways. (d) has been shown to contribute little to the digestive process of hominids.

How did ancient civilizations develope its agriculture and protect its population