Question

question 1
which type of temperament do the least percentage of babies fall into?
slow to warm
easy
undifferentiated
difficult

Explanation:

Identify the core concept

The question asks which type of temperament contains the least percentage of babies according to classic developmental psychology research. This relates to the Infant Temperament classifications established by Thomas and Chess in their landmark New York Longitudinal Study.

Analyze the classifications and percentages

Thomas and Chess categorized infant temperaments into three main styles, with a remaining percentage of children not fitting neatly into a single category:

• Easy babies: approximately 40% of the sample.
• Difficult babies: approximately 10% of the sample.
• Slow-to-warm-up babies: approximately 15% of the sample.
• Remaining/Undifferentiated (or active/mixed): approximately 35% of the sample.

Compare the percentages

Comparing the percentages of the defined temperament categories:

• Easy: 40%
• Slow-to-warm-up: 15%
• Difficult: 10%

Among the three main defined temperament categories, "Difficult" represents the smallest percentage at 10%.

Answer:

• Slow to warm
• Easy
• Undifferentiated
• Difficult (Correct answer)