Answer:
The researcher is confounding the sweetness of the cereal and the colour of the cereal.
Explanation:
Based on the results, it would be unclear if the subjects prefer the cereal because of the colour or because of the sweetness --it is only the latter the researcher wants to know about. This would be the dependent variable.
To fix this, the researcher should use the same colour for both sweetened and unsweetened cereal and have each preschooler try both. It is possible to colect data through observation (look at the children's reactions) or simply asking for their opinions at the end of the experiment.
Answer:
Intergenerational mobility
Explanation:
When a change of socio-economic status takes place in between generations it is known as Intergenerational mobility.
Here, Sarah is from a lower-middle-class family i.e., her parents belongs to the lower-middle-class. Sarah became a doctor with the help of a scholarship. She was earning more than what her parents were earning. So, she moved up to the upper-middle class. This happened between her and her parents generation.
Hence, Sarah's movement is best described as Intergenerational mobility.
The finding that would rule out the x-linked hypothesis to determine if a newborn boy has an x-linked genetic disorder is C. both brothers and sisters have the disorder though neither parent does.
<h3>What is a hypothesis?</h3>
It should be noted that a hypothesis simply means a proposed explanation about a particular topic.
The x linked hypothesis recognizes the Barr body in female cells. In this case, the finding that would rule out the x-linked hypothesis to determine if a newborn boy has an x-linked genetic disorder is that both brothers and sisters have the disorder though neither parent does.
Learn more about hypothesis on:
brainly.com/question/11555274
