A Developmental Psychologist Comparing Infants of Three Different Temperaments on Their

question 8

Essay

A developmental psychologist comparing infants of three different temperaments on their ability to recognize faces found that the scores for the infants with Temperament I were 577,131,and 629; the scores for the infants with Temperament II were 508,483,and 220; and the scores for the infants with Temperament III were 1907,1104,and 1569.
a.Conduct a standard one-way analysis of variance,but with ranks instead of recognition scores.Using the .05 level,do these results suggest that among infants in general,these kinds of temperaments make a difference in ability to recognize faces?
b.Explain and justify your analysis to a person who is familiar with the one-way analysis of variance,but not with rank-order procedures or the issues associated with them.

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Definitions:

Sensory

Pertaining to the senses or sensation, often referring to the physiological mechanisms of perception.

Neurological

Pertaining to the nervous system, including the brain, spinal cord, and nerves, involving the study and treatment of its structure, functions, and disorders.

Sensorimotor Stage

Piaget’s first stage of cognitive development, which lasts through infancy and is generally characterized by increasingly complex coordination of sensory experiences with motor activity.

Cognitive Development

The progression of learning and mental abilities, including thinking, problem-solving, and decision-making, from infancy through adulthood.