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PECT practice questions

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Question 1Child Development, Learning, and Assessment (PreK–4 module)

A teacher notices that a 9-month-old infant lifts a blanket to find a toy that was hidden underneath it. This behavior is the best evidence that the infant has developed which of the following?

  1. Conservation of number
  2. Object permanence Correct answer.
  3. Stranger anxiety
  4. Symbolic play

Explanation

Object permanence is the understanding that objects continue to exist even when they are out of sight. It develops during Piaget's sensorimotor stage, becoming evident in the second half of the first year as infants begin searching for hidden objects.

Question 2Child Development, Learning, and Assessment (PreK–4 module)

According to Maslow's hierarchy of needs, which need must generally be addressed before a child can focus on classroom learning and achievement?

  1. Esteem needs
  2. Self-actualization needs
  3. Physiological needs such as hunger and rest Correct answer.
  4. Safety and security needs

Explanation

Maslow arranged needs in a hierarchy in which basic physiological requirements sit at the base and must be reasonably satisfied before higher needs can drive behavior. A hungry, tired child has difficulty directing attention to learning, which is why schools provide meals and rest opportunities.

Question 3Child Development, Learning, and Assessment (PreK–4 module)

A kindergarten teacher observes each child counting objects during a small-group activity and uses what she sees to adjust the next day's lesson. This practice is best described as:

  1. Summative assessment
  2. Formative assessment Correct answer.
  3. Standardized screening
  4. Norm-referenced testing

Explanation

Formative assessment is ongoing gathering of evidence during instruction for the purpose of adjusting teaching and learning in real time. Because the teacher uses her observations to shape the next lesson rather than to assign a final grade, the process is formative.

Question 4Child Development, Learning, and Assessment (PreK–4 module)

Which teacher action best illustrates scaffolding?

  1. Having children copy a sentence ten times
  2. Letting children do a puzzle with no help
  3. Modeling scissor use, then reducing help Correct answer.
  4. Assigning review worksheets on mastered skills

Explanation

Scaffolding means providing temporary support that is gradually withdrawn as the learner gains competence. Modeling a skill and then fading assistance keeps the task within reach while shifting responsibility to the child.

Question 5Child Development, Learning, and Assessment (PreK–4 module)

Which sequence reflects the typical order in which gross-motor skills emerge during infancy?

  1. Walking, crawling, sitting without support, rolling over
  2. Sitting without support, rolling over, walking, crawling
  3. Crawling, rolling over, sitting without support, walking
  4. Rolling over, sitting without support, crawling, walking Correct answer.

Explanation

Gross-motor development follows a cephalocaudal and proximodistal pattern, with control of the head and trunk emerging before locomotion. Infants typically roll over, then sit unsupported, then crawl or creep, and then walk.

Question 6Child Development, Learning, and Assessment (PreK–4 module)

Two 3-year-olds sit side by side in a sandbox, each building a separate mound without talking or sharing materials. This behavior is best described as:

  1. Parallel play Correct answer.
  2. Cooperative play
  3. Solitary play
  4. Associative play

Explanation

In Parten's play sequence, parallel play occurs when children play near one another with similar materials but do not interact or share a common activity. The children here are side by side yet independently engaged.

Question 7Child Development, Learning, and Assessment (PreK–4 module)

Which activity most directly builds phonological awareness?

  1. Writing a sentence about a mouse
  2. Tracing the letter m in sand
  3. Matching words that rhyme Correct answer.
  4. Copying words from a word wall

Explanation

Phonological awareness is the ability to notice and manipulate the sounds of spoken language, including syllables, rhymes, and individual phonemes, without depending on print. Rhyming activities target the sound structure of words directly.

Question 8Child Development, Learning, and Assessment (PreK–4 module)

A teacher praises a child each time the child raises a hand instead of calling out, and hand-raising increases. This is an example of:

  1. Punishment
  2. Positive reinforcement Correct answer.
  3. Negative reinforcement
  4. Extinction

Explanation

Positive reinforcement occurs when a desirable consequence is added after a behavior and the behavior becomes more frequent. Praise delivered after hand-raising strengthened the behavior, which fits this definition.

Question 9Child Development, Learning, and Assessment (PreK–4 module)

A 5-year-old completes a 12-piece puzzle alone but can finish a 24-piece puzzle when an adult points out the corner pieces. The 24-piece task falls within the child's:

  1. Independent performance level
  2. Zone of proximal development Correct answer.
  3. Frustration threshold
  4. Preferred learning style

Explanation

Vygotsky's zone of proximal development covers tasks a learner cannot yet do alone but can accomplish with guidance from a more capable person. The 24-piece puzzle is exactly that kind of assisted-but-reachable task.

Question 10Child Development, Learning, and Assessment (PreK–4 module)

A preschool program lets children choose their own project topics and materials and encourages them to carry plans through to completion. This practice primarily supports which psychosocial task?

  1. Autonomy versus shame and doubt
  2. Trust versus mistrust
  3. Initiative versus guilt Correct answer.
  4. Industry versus inferiority

Explanation

Erikson's initiative-versus-guilt stage, typical of the preschool years, is supported when adults allow children to plan, initiate, and carry out their own activities. Successful experiences build a sense of purpose, while excessive restriction fosters guilt.

Question 11Child Development, Learning, and Assessment (PreK–4 module)

In a separation procedure, a toddler explores freely while the caregiver is present, becomes distressed when she leaves, and is quickly comforted when she returns. This pattern indicates:

  1. Insecure-resistant attachment
  2. Secure attachment Correct answer.
  3. Insecure-avoidant attachment
  4. Disorganized attachment

Explanation

Secure attachment is marked by using the caregiver as a safe base for exploration, distress at separation, and quick comfort on reunion. The child's smooth return to exploration after being soothed is the key indicator.

Question 12Child Development, Learning, and Assessment (PreK–4 module)

A 4-year-old watches juice being poured from a tall narrow glass into a short wide glass and insists that there is now less juice. This response most directly reflects difficulty with:

  1. Seriation
  2. Conservation Correct answer.
  3. Classification
  4. Egocentric speech

Explanation

Conservation is the understanding that quantity remains the same when only the appearance or arrangement changes. Centration on a single perceptual feature, such as the height of the liquid, leads the preoperational child to judge that the amount changed.

Question 13Child Development, Learning, and Assessment (PreK–4 module)

A child becomes anxious whenever the class lines up to visit the school nurse, because a shot was given in that office earlier in the year. This reaction is best explained by:

  1. Classical conditioning Correct answer.
  2. Habituation
  3. Observational learning
  4. Operant conditioning

Explanation

Classical conditioning occurs when a neutral stimulus that is repeatedly paired with an unpleasant event comes to elicit a conditioned emotional response. The nurse's office, once neutral, now triggers anxiety through its association with the shot.

Question 14Child Development, Learning, and Assessment (PreK–4 module)

After sorting buttons into groups, children explain in their own words why the buttons in each group belong together. The explanation step draws most directly on which level of Bloom's taxonomy?

  1. Remembering
  2. Applying
  3. Creating
  4. Understanding Correct answer.

Explanation

Understanding involves constructing meaning from information and explaining ideas in one's own words, such as justifying why items belong together. Remembering only requires recall, and applying and creating involve using or producing something new.

Question 15Child Development, Learning, and Assessment (PreK–4 module)

A screening measure produces nearly identical scores when the same child is tested twice in one week, but it does not measure the skills it claims to measure. This measure is:

  1. Both reliable and valid
  2. Valid but not reliable
  3. Reliable but not valid Correct answer.
  4. Neither reliable nor valid

Explanation

Reliability refers to consistency of scores across occasions or raters, while validity refers to whether an instrument measures what it is intended to measure. Consistent scores that miss the intended construct describe a reliable but invalid instrument.

Question 16Child Development, Learning, and Assessment (PreK–4 module)

A teacher reports that a child can count to 20, name 15 letters, and write her first name, based on a checklist of specific skills. This report is best described as:

  1. A percentile ranking
  2. Norm-referenced scoring
  3. Criterion-referenced assessment Correct answer.
  4. Standardized scoring

Explanation

Criterion-referenced assessment describes performance in relation to specific, defined skills or standards rather than to other children's scores. The checklist statements tell exactly which competencies the child has demonstrated.

Question 17Child Development, Learning, and Assessment (PreK–4 module)

A teacher writes a short, factual description of one child's behavior during clean-up, recording what happened and when without adding interpretation. This documentation is best described as:

  1. An anecdotal record Correct answer.
  2. A running record
  3. A checklist
  4. A rating scale

Explanation

An anecdotal record is a brief, objective, narrative account of a specific observed incident, written after the fact and free of judgment. A running record, by contrast, is a continuous, moment-by-moment account of behavior over a set period.

Question 18Child Development, Learning, and Assessment (PreK–4 module)

A child says "I goed to the store" and "two mouses." These errors are best explained as:

  1. Overgeneralization of grammatical rules Correct answer.
  2. A phonological processing difficulty
  3. A language delay requiring referral
  4. Evidence of a small vocabulary

Explanation

Overgeneralization occurs when children apply a newly learned rule, such as past-tense -ed or plural -s, to irregular forms that do not follow it. These errors are a normal sign that the child is actively constructing grammar rules.

Question 19Child Development, Learning, and Assessment (PreK–4 module)

A child understands that a classmate can hold a belief that is different from, and even contrary to, reality. This understanding demonstrates development of:

  1. Centration
  2. Conservation
  3. Theory of mind Correct answer.
  4. Egocentric speech

Explanation

Theory of mind is the understanding that other people have mental states, including beliefs, that may differ from one's own and from the facts. Recognizing a false belief in another person is a classic marker of this understanding.

Question 20Child Development, Learning, and Assessment (PreK–4 module)

Which is the strongest example of authentic assessment in a prekindergarten classroom?

  1. A group-administered quiz
  2. A timed letter-naming test
  3. A collection of a child's drawings and dictated stories gathered across the year Correct answer.
  4. A published readiness test

Explanation

Authentic assessment documents children's performance on real, meaningful tasks in natural settings over time. A portfolio of work samples and dictated stories reflects what children actually do in the classroom rather than performance on a contrived test.

Question 21Child Development, Learning, and Assessment (PreK–4 module)

A child whines until a parent gives a cookie, and giving the cookie stops the whining. Over time the parent offers the cookie sooner. For the parent, the cookie giving is maintained by:

  1. Positive punishment
  2. Positive reinforcement
  3. Extinction
  4. Negative reinforcement Correct answer.

Explanation

Negative reinforcement strengthens a behavior by removing or ending an aversive stimulus. Because giving the cookie terminates the unpleasant whining, the parent's cookie-giving behavior increases, even though a treat is involved.

Question 22Child Development, Learning, and Assessment (PreK–4 module)

A child earns a percentile rank of 75 on a norm-referenced test. This means that the child:

  1. Answered 75 percent of the items correctly
  2. Scored at or above about 75 percent of the norm group Correct answer.
  3. Achieved 75 percent of the year's learning goals
  4. Gained 75 points since the previous testing

Explanation

A percentile rank indicates the percentage of the norm group whose scores fall at or below a given score, not the percentage of items answered correctly. A rank of 75 places the child above roughly three quarters of the comparison group.

Question 23Child Development, Learning, and Assessment (PreK–4 module)

A child explains that hitting is wrong only because "you get in trouble and lose recess." This reasoning reflects which of Kohlberg's levels?

  1. Formal operational
  2. Preconventional Correct answer.
  3. Postconventional
  4. Conventional

Explanation

The preconventional level is characterized by reasoning based on avoiding punishment and obtaining rewards for oneself. Judging an act wrong solely because it brings adult consequences fits this level.

Question 24Child Development, Learning, and Assessment (PreK–4 module)

A readiness test asks 4-year-olds to identify pictures of fondue forks, golf tees, and yacht equipment. A curriculum specialist should be most concerned about:

  1. Cultural bias Correct answer.
  2. Standard error of measurement
  3. Test-retest reliability
  4. Inter-rater agreement

Explanation

An item is culturally biased when it depends on experiences, vocabulary, or objects that are unevenly distributed across groups, so scores reflect background rather than the intended skill. Familiarity with fondue forks and yacht equipment is tied to particular socioeconomic and cultural experiences.

Question 25Child Development, Learning, and Assessment (PreK–4 module)

A test reports a standard error of measurement of 3 points, and a child obtains a score of 60. The most defensible interpretation is that:

  1. The child answered 3 items incorrectly
  2. The child's true score is likely within a few points of 60 Correct answer.
  3. The score is 3 percentile points above average
  4. The child scored 3 points above the mean

Explanation

The standard error of measurement estimates the average amount by which obtained scores differ from a child's true score, so it is used to build a confidence band around the observed score. Reporting a single score as exact ignores this measurement error.

Question 26Child Development, Learning, and Assessment (PreK–4 module)

An infant searches for a toy that an adult hides under a blanket, but makes no attempt to search after the adult moves the toy to a second hiding place. Piaget would interpret this behavior as evidence that the infant has not yet fully acquired:

  1. Symbolic play
  2. Conservation of number
  3. Deferred imitation
  4. Object permanence Correct answer.

Explanation

Object permanence is the understanding that objects continue to exist when they are out of sight, and the search pattern described shows that this understanding is not yet applied consistently across hiding locations. Conservation, deferred imitation, and symbolic play all concern other achievements of the sensorimotor and preoperational periods and do not explain a failed search.

Question 27Child Development, Learning, and Assessment (PreK–4 module)

A 2-year-old insists on zipping her own coat and protests loudly when an adult does it for her. In Erikson's theory, this behavior shows that the child is working on which psychosocial issue?

  1. Trust versus mistrust
  2. Initiative versus guilt
  3. Industry versus inferiority
  4. Autonomy versus shame and doubt Correct answer.

Explanation

Erikson's second stage centers on the toddler's drive to do things independently; adults who allow safe self-help build autonomy, while over-controlling responses foster shame and doubt. The behavior described is a classic bid for independence during this stage.

Question 28Child Development, Learning, and Assessment (PreK–4 module)

A 22-month-old says "Daddy shoe" to mean "That is Daddy's shoe." This utterance is best described as:

  1. A holophrase
  2. Babbling
  3. Telegraphic speech Correct answer.
  4. Overextension

Explanation

Telegraphic speech consists of short word combinations that carry the main content words while omitting articles, auxiliaries, and other grammatical markers. The child has combined two content words into a meaningful phrase, which is the defining feature of this stage.

Question 29Child Development, Learning, and Assessment (PreK–4 module)

Four children decide to run a pretend bakery together: one takes orders, one bakes, one delivers, and they agree on who does what. This behavior is best classified as:

  1. Solitary play
  2. Cooperative play Correct answer.
  3. Associative play
  4. Parallel play

Explanation

Cooperative play is distinguished by children organizing roles around a shared goal and agreeing on rules or a plan. The division of labor and joint plan described are the defining features of this play level.

Question 30Child Development, Learning, and Assessment (PreK–4 module)

A measure reports whether a child can perform each of twelve specific prekindergarten skills, judging performance against a stated standard rather than against other children's scores. This measure is best described as:

  1. A norm-referenced measure
  2. A projective measure
  3. A criterion-referenced measure Correct answer.
  4. An aptitude test

Explanation

A criterion-referenced measure compares a child's performance to a defined level of mastery or standard, so the report indicates which specific skills have been met. Interpretation does not depend on how a comparison group performed.

Question 31Child Development, Learning, and Assessment (PreK–4 module)

During a unit on plants, a teacher asks children to draw what they think a seed needs in order to grow and then uses their drawings to plan the next day's lesson. This practice is an example of:

  1. Formative assessment Correct answer.
  2. Summative assessment
  3. Standardized screening
  4. Norm-referenced testing

Explanation

Formative assessment is conducted during instruction and is used to adjust teaching while learning is still in progress. Collecting children's current ideas to shape the next lesson is the defining purpose of formative assessment.

Question 32Child Development, Learning, and Assessment (PreK–4 module)

A child arranges five sticks in order from shortest to longest without adult help. This ability is called:

  1. Seriation Correct answer.
  2. Classification
  3. Conservation
  4. Centration

Explanation

Seriation is the ability to order objects along a single dimension such as length, height, or weight. Ordering the sticks from shortest to longest is the standard demonstration of this skill.

Question 33Child Development, Learning, and Assessment (PreK–4 module)

A child uses free-choice time to write and illustrate a story purely for the enjoyment of doing it and shows no interest in earning a sticker. This behavior best illustrates:

  1. Intrinsic motivation Correct answer.
  2. Extrinsic motivation
  3. A performance goal
  4. Learned helplessness

Explanation

Intrinsic motivation arises when an activity is pursued because it is inherently interesting or satisfying. The child engages in the writing for its own sake, with no external reward or audience comparison involved.

Question 34Child Development, Learning, and Assessment (PreK–4 module)

While building a tower, a 5-year-old says quietly to herself, "First put the big block at the bottom, then the little ones." Vygotsky would interpret this talk as:

  1. A sign of delayed language development
  2. Practice for future social conversation
  3. Egocentric speech with no useful function
  4. Private speech that guides thinking Correct answer.

Explanation

Vygotsky viewed private speech as a tool children use to direct and regulate their own problem solving, later becoming internalized as inner speech. The self-directed plan the child verbalizes fits this regulatory function.

Question 35Child Development, Learning, and Assessment (PreK–4 module)

One child is highly active and does best with frequent movement breaks, while a quiet classmate concentrates best during long stretches of seat work. The match between each child's style and the classroom environment is referred to as:

  1. Scaffolding
  2. Goodness of fit Correct answer.
  3. Modeling
  4. Attachment

Explanation

Goodness of fit describes how well a child's temperament and characteristics match the demands and supports of the environment. When the setting accommodates each child's style, adjustment and learning improve.

Question 36Child Development, Learning, and Assessment (PreK–4 module)

A child hears the word "kestrel" once during a read-aloud and the following day correctly points to a picture of one. This rapid, partial word learning is called:

  1. Underextension
  2. Babbling
  3. Overextension
  4. Fast mapping Correct answer.

Explanation

Fast mapping is the rapid formation of a preliminary link between a new word and its referent after very limited exposure. The child has learned enough from one hearing to identify the referent, which is the hallmark of fast mapping.

Question 37Child Development, Learning, and Assessment (PreK–4 module)

A child holds up a drawing against his own chest and turns it toward himself so his teacher, standing behind him, can see it. In Piaget's framework, this is best explained by:

  1. Centration
  2. Reversibility
  3. Egocentrism Correct answer.
  4. Conservation

Explanation

Egocentrism in the preoperational period is the difficulty of representing another person's viewpoint, including spatial perspective. The child assumes that because he can see the drawing, the teacher can see it too.

Question 38Child Development, Learning, and Assessment (PreK–4 module)

A teacher wants to know how often a child is engaged with peers during center time and records the child's status at the end of every five-minute interval. This procedure is:

  1. Event sampling
  2. Time sampling Correct answer.
  3. A running record
  4. A portfolio review

Explanation

Time sampling involves observing at predetermined intervals and recording whether the target behavior is occurring at that moment. Because the teacher records at fixed time points rather than each time the behavior happens, this is time sampling.

Question 39Child Development, Learning, and Assessment (PreK–4 module)

A test written for a prekindergarten farm unit includes items about farm animals, crops, and farm machines, and a reviewer judges that the items represent the unit's stated objectives well. This judgment is primarily about the test's:

  1. Content validity Correct answer.
  2. Split-half reliability
  3. Test-retest reliability
  4. Predictive validity

Explanation

Content validity is the degree to which a test's items adequately sample the domain or objectives it is meant to measure. Judging that the items match the unit's objectives is a content validity judgment.

Question 40Child Development, Learning, and Assessment (PreK–4 module)

A child of 6 years earns an age-equivalent score of 8 years 2 months on a reading test. Which interpretation of that score is most defensible?

  1. She should be moved ahead to a grade level of 8 years 2 months
  2. Her reading ability will remain at the 8 years 2 months level as she grows
  3. She reads as well as the average child of 8 years 2 months in every area
  4. Her raw score equals the median raw score of children aged 8 years 2 months Correct answer.

Explanation

An age-equivalent score is simply the age at which the obtained raw score is the median of the norm group; it is a transformed raw score, not a description of the child's overall functioning. It says nothing about placement decisions or about how the child's skills will develop over time.

Question 41Child Development, Learning, and Assessment (PreK–4 module)

In a three-tier response-to-intervention framework, a child who shows inadequate progress after a period of small-group Tier 2 support should next:

  1. Be retained in the current grade
  2. Be screened for gifted services
  3. Return to Tier 1 instruction with no changes
  4. Receive more intensive, individualized support with continued progress monitoring Correct answer.

Explanation

In an RTI model, insufficient response to a secondary intervention leads to a more intensive, individualized tier with ongoing progress monitoring, and the accumulated data may inform a referral for a full evaluation. Movement across tiers is driven by measured response to intervention rather than by retention or unrelated screening.

Question 42Child Development, Learning, and Assessment (PreK–4 module)

A child with a fine-motor delay uses a larger pencil grip and receives extra time to complete the same cutting-and-pasting project as the rest of the class. This support is an accommodation because:

  1. Replacement with an easier objective
  2. Reduced expectations for what is learned
  3. Same objective, different access route Correct answer.
  4. Exemption from the classroom standard

Explanation

An accommodation changes how a child accesses instruction or demonstrates learning while keeping the same learning expectations. Because the objective and content are unchanged and only the access supports differ, this is an accommodation rather than a modification.

Question 43Child Development, Learning, and Assessment (PreK–4 module)

A child who watches a classmate receive praise for sharing begins to share more often himself, though no one has praised him directly. This change is best explained by:

  1. Habituation
  2. Direct reinforcement
  3. Classical conditioning
  4. Observational learning Correct answer.

Explanation

Observational learning occurs when a child acquires or increases a behavior by watching the consequences that another person experiences. Because the child was never reinforced directly, the change is attributable to what he observed.

Question 44Child Development, Learning, and Assessment (PreK–4 module)

Which classroom practice best reflects developmentally appropriate practice for a group of 4-year-olds?

  1. Seating children in rows for long whole-group lessons
  2. Offering hands-on materials matched to children's interests and skills Correct answer.
  3. Using one identical activity for every child regardless of level
  4. Having children complete worksheets to prepare for first grade

Explanation

Developmentally appropriate practice requires that experiences fit children's age-related capabilities and be adapted to individual children's interests and skills, which for 4-year-olds means concrete, hands-on activity. Uniform paper tasks, long passive lessons, and one-size-fits-all activities overlook both age and individual appropriateness.

Question 45Child Development, Learning, and Assessment (PreK–4 module)

A 4-year-old waiting for a turn on the swing counts to ten and reminds herself that her turn is coming. This is best described as:

  1. Self-regulation through a private strategy Correct answer.
  2. Learned helplessness
  3. Social referencing
  4. Deferred imitation

Explanation

Self-regulation involves managing one's own attention, emotion, and behavior to meet a goal, often by using internal strategies such as self-talk or counting. The child is deliberately using a private strategy to tolerate delay.

Question 46Child Development, Learning, and Assessment (PreK–4 module)

In a small class, one child's extremely high score pulls the mean far above the median. Which statement about these scores is accurate?

  1. The median is less affected by the extreme score than the mean Correct answer.
  2. The mean best represents the typical score here
  3. The mode must equal the mean in this class
  4. The standard deviation must be close to zero

Explanation

The median is a positional measure and is relatively resistant to outliers, while the mean incorporates every score and is therefore pulled in the direction of an extreme value. With a strong outlier, the median is the better indicator of a typical score.

Question 47Child Development, Learning, and Assessment (PreK–4 module)

A child knows that Ana's ribbon is longer than Ben's and that Ben's is longer than Cal's, and concludes without comparing them that Ana's ribbon must be longer than Cal's. This reasoning demonstrates:

  1. Centration
  2. Reversibility
  3. Conservation
  4. Transitivity Correct answer.

Explanation

Transitivity is the ability to infer a relation between two objects from their relations to a third, as in A > B and B > C therefore A > C. It emerges in the concrete operational period and does not require direct comparison.

Question 48Child Development, Learning, and Assessment (PreK–4 module)

A 4-year-old says "Want ba-ba?" to a baby sibling but asks an adult, "May I have some milk, please?" This adjustment of language to the listener reflects growth in:

  1. Syntax
  2. Pragmatics Correct answer.
  3. Morphology
  4. Phonology

Explanation

Pragmatics is the use of language appropriately for social context, including adjusting register and style to the listener. Changing speech for a baby versus an adult is a pragmatic skill rather than a matter of sound, word formation, or sentence structure.

Question 49Child Development, Learning, and Assessment (PreK–4 module)

On a 20-item skill inventory, 18 of 20 children answered item 5 correctly, giving a difficulty index of 0.90. The most appropriate interpretation is that the item:

  1. Was easy for this group and may discriminate poorly Correct answer.
  2. Should be removed because it is unreliable
  3. Shows that ninety percent of the content has been mastered
  4. Is invalid for this age group

Explanation

A difficulty index is the proportion of examinees answering an item correctly, so 0.90 indicates an easy item for this group. Items answered correctly by nearly everyone provide little information for separating children who differ in skill.

Question 50Child Development, Learning, and Assessment (PreK–4 module)

A researcher compares the memory performance of 3-, 5-, and 7-year-olds on the same task, all tested in the same month, and concludes that memory improves with age. A major limitation of this design is that:

  1. Practice effects inflated the older children's scores
  2. Regression to the mean explains the pattern
  3. Age is confounded with cohort experiences Correct answer.
  4. Observer drift differed across age groups

Explanation

In a cross-sectional design, children of different ages are also members of different cohorts, so differences may reflect distinct rearing experiences, curricula, or historical events rather than age itself. Because each child is measured once, repeated-testing effects cannot account for group differences.