A Developmental Psychologist Was Interested in How Long It Would

question 11

Essay

A developmental psychologist was interested in how long it would take a particular 7-year-old child to complete three different aptitude tests as compared with 7-year-olds in the general population.The child's time for reading was 31 minutes (population: M = 29,SD = 4).For math,it was 26 minutes (population: M = 32,SD = 2).For science,it was 40 minutes (population: M = 31,SD = 4).
a.Calculate the child's Z scores for each of the aptitude tests.
b.Which aptitude test(s)took the child substantially more time to complete as compared with other 7-year-olds?
c.Which aptitude test(s)took the child substantially less time to complete as compared with other 7-year-olds?
d.Explain your answers to someone who has never had a course in statistics.

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Definitions:

Schemes

Cognitive structures or frameworks for organizing and interpreting information, used by children to understand the world as they grow and learn.

Sensitive Period

A specific time in an organism's development when it is more responsive to certain stimuli and quicker to learn particular skills.

Morphemes

are the smallest grammatical units in a language that have semantic meaning, such as roots, prefixes, and suffixes.

Mental Abilities

The capacity to perform cognitive tasks, solve problems, and learn from experiences.