Infant Sensory & Motor Development

Which sensory acuity improves the least from birth to adulthood?

A researcher is testing a newborn's sensory perception. If the newborn demonstrates a strong preference by sucking more when presented with a sweet taste, which sense is the researcher most likely assessing?

Assuming typical development, at what age would a child's hearing acuity be most similar to that of an adult?

A baby is presented with a new sound, and the researcher observes the baby turning their head towards the source of the sound. Which sense is being tested, and what method is being used to measure acuity?

A researcher aims to test a newborn's visual acuity using habituation. Which of the following represents an appropriate range of distances (in inches) to present stimuli to the newborn?

A baby consistently rolls from their stomach to their side at 3 months old but shows no other gross motor skills. How should this be interpreted?

Which of the following sequences represents the typical order of gross motor skill development in infants, according to the provided milestones?

An 9-month-old infant can sit up independently, turn from stomach to back, and is starting to pull themselves up to stand while holding onto furniture. Based on this, which skill would be expected to develop next?

If a 6-month-old infant cannot sit up independently, what early gross motor skill should be assessed to understand their developmental progress?

Which of the following sequences represents the typical progression of grasping skills in infants, from earliest to latest development?

A parent is concerned that their 10-month-old is not yet crawling. What advice should the pediatrician provide, considering the typical range of gross motor skill development?

At approximately what age do infants typically develop the ability to transfer objects between their hands?

A child who can stack 5 blocks is likely demonstrating fine motor skills characteristic of which age range?

A child is observed moving across the room using their hands and knees, with their abdomen consistently off the floor. Which type of locomotion is the child demonstrating?

The 'mitten grasp' and the 'palm grasp' are both early grasping patterns. How do they differ in terms of developmental order?

If a child is observed to be using their index finger to explore the texture of a toy at 11 months old, which fine motor skill is MOST directly being demonstrated?

A baby is placed in the center of a room with toys scattered all around. The baby propels themselves forward, but their stomach remains in contact with the floor. This is an example of what?

A toddler is walking around the perimeter of their playpen, using the sides of the playpen for balance and support. Which type of locomotion is being demonstrated?

Which scenario best exemplifies the difference between creeping and crawling?

A child begins to use a small table to walk around its perimeter. This behavior is most indicative of which motor skill development?

Which of the following scenarios would LEAST likely benefit from the application of the Central Limit Theorem (CLT)?

A researcher is studying the effectiveness of a new drug on reducing blood pressure. They collect data from a clinical trial and calculate a confidence interval for the mean reduction in blood pressure. Which of the following changes would likely lead to a narrower confidence interval?

A company wants to determine if there is a significant difference in sales between two different marketing campaigns. They conduct a hypothesis test and obtain a p-value of 0.06. Which of the following statements is the MOST appropriate interpretation of this result?

In a linear regression analysis, a researcher finds a strong positive correlation between two variables, X and Y. However, they also suspect that a lurking variable, Z, is affecting both X and Y. Which of the following is the MOST likely consequence of omitting variable Z from the regression model?

A dataset contains information on customer satisfaction scores and purchase frequency. A statistician wants to predict customer satisfaction based on purchase frequency. However, they notice that the relationship between the two variables is non-linear. Which of the following techniques is LEAST suitable for modeling this relationship?

A new parent is considering co-sleeping primarily to facilitate more frequent breastfeeding. What potential trade-off should they be most aware of?

Parents who choose crib sleeping over co-sleeping are prioritizing which of the following?

Which scenario most accurately reflects a potential challenge associated with crib usage as the infant grows?

A family decides to co-sleep, citing the benefit of increased parental monitoring of the baby. What is a crucial safety consideration they must address to mitigate the risks associated with this choice?

How does choosing between co-sleeping and crib sleeping potentially affect a baby's development of independent sleep habits?

Lift head

Lift chest

Turn: Stomach to back

Crawls or Creeps

Walks

Testing Effect

Active Recall

Spaced Repetition

Memory Consolidation

Metacognition

Reflexive grasping

Ulnar grasp

Pincer grasp

Advanced Thumb-Forefinger Grasp

Stacking blocks

Vision Acuity at Birth

Adult Vision Acuity

Hearing Acuity at Birth

Taste Preferences at Birth

Smell and Touch at Birth

Crawling

Creeping

Cruising

Difference between Crawling and Creeping

Purpose of Cruising

Co-sleeping

Pros of Co-sleeping

Cons of Co-sleeping

Cribs

Pros of Cribs