To Test Whether Primitive Reflexes Are Linked to Important Later

question 6

Multiple Choice

To test whether primitive reflexes are linked to important later behaviors, Zelazo and his colleagues stimulated the walking reflex on 2 to 8 week old babies. What did they find?

• A) The infant's leg muscles failed to develop properly.
• B) There was no difference in later motor skills.
• C) This was not a reflex, but actually precocious walking.
• D) Infants walked alone about a month earlier.
• E) Early walking motions impaired cognitive skills.

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Definitions:

Critical T Value

The threshold value in t-testing that determines whether to reject the null hypothesis, based on the desired level of significance.

Significance

The likelihood that a relationship between two or more variables is caused by something other than random chance.

Slope

The slope is the measure of the steepness or incline of a line, defined as the ratio of the vertical change to the horizontal change between two points on the line.

Sales Data

Information collected about the sales performance of products or services, often used for analysis and business strategy planning.