The observation that children with down syndrome may alternate between periods of gain and functioning and periods of little or no advance is the?

A functioning difference hypothesis.
B variance hypothesis
C.variance observation
d.slowing and stablility hypothesis

A?

I would say no. I would say C. The wording in the question gives clues to the answer. However, you can doublecheck by googling variance observation.

The correct answer is B. variance hypothesis.

To arrive at this answer, we need to understand the question and the options provided. The question states that children with Down syndrome may alternate between periods of gain and functioning and periods of little or no advance. We are then asked to identify the observation that best matches this pattern.

To answer this question, we first need to understand the concept of Down syndrome. Down syndrome is a genetic disorder caused by the presence of an extra copy of chromosome 21, which can result in cognitive and developmental delays.

Among children with Down syndrome, it has been observed that their development and functioning can vary significantly. Some periods may be marked by significant gains and improvements in their abilities, while other periods may show little or no progress. This fluctuation in their progress is what distinguishes the developmental pattern observed in children with Down syndrome.

The options provided are:

A. functioning difference hypothesis - This is not the correct answer since it doesn't specifically reflect the pattern mentioned in the question.

B. variance hypothesis - This is the correct answer. The term "variance" refers to the difference or variation observed between periods of gain and functioning and periods of little or no advance.

C. variance observation - This option reflects the concept of variance but does not specifically mention it as a hypothesis. Therefore, it is not the most accurate answer.

D. slowing and stability hypothesis - This option does not capture the alternating pattern specified in the question. It focuses on slowing and stability, rather than periods of gain and little or no advance.

In conclusion, based on the observation described in the question, the correct answer is B. variance hypothesis.