This quiz is designed to check your understanding
of data, inference, and prior knowledge and beliefs. Read the following
text passage and then answer the questions on the following page.
By digging straight down, we exposed a
clear demarcation line between green mudstone, with fossils in it, and
the surrounding red mudstone. Once we had dug out the green mudstone,
the hole that was left had the shape of a hemisphere. Sedimentary rocks
form when layers of materials like mud or sand are deposited sequentially
and build up over time. The way the ground was contoured (in the shape
of a hemisphere) must have existed before it was filled in by a deposit
of a different color silt. The structure was a concave depression about
six feet in diameter and about three feet deep, something like a giant
salad bowl. The bowl itself was made of red mudstone, but the salad
(which contained the fossils) was the green mudstone that had filled
the bowl. One of the primary roles of any nest structure is to contain
eggs so that they remain together. It occurred to us that what we had
was not just a collection of bones but a nest.
- modified from Jack Horner's 1988 book Digging Dinosaurs
1. Identify two pieces of prior knowledge or beliefs the Horner uses in
this paragraph. The prior knowledge and beliefs you identify may be either
written explicitly or implied in his paragraph.
Why are these examples of prior knowledge
2. Write down two references to data from
What makes these statements about data?
3. What are two inferences that Horner makes?
Explain why these statements are inferences.
4. Identify an inference from the writing
(it may be one you used above) and describe the prior knowledge, beliefs,
and data the inference was likely based upon. The point of this question
is for you to demonstrate your understanding of the relationships between
data, inference, and prior knowledge and beliefs.