Raven's Progressive Matrices Distribution and Frequency Rules Flashcards
7 cards from real Raven's Progressive Matrices Test practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Raven's Progressive Matrices Distribution and Frequency Rules flashcards as text
What does it mean when an RPM score distribution is described as 'platykurtic'?
Answer: The distribution is flatter and more spread out than a normal curve
A platykurtic distribution has lower kurtosis than a normal distribution, meaning scores are more evenly dispersed with a flatter peak.
In RPM research, 'Flynn Effect' refers to which observed pattern in score distributions over time?
Answer: Rising average raw scores across successive generations requiring periodic renorming
The Flynn Effect is the documented rise in average IQ and RPM raw scores over generations, necessitating periodic re-standardization of norms.
If the RPM score distribution in a clinical sample of individuals with traumatic brain injury is compared to the normative distribution, what shift is typically expected?
Answer: The clinical distribution shifts to the left (lower scores)
TBI commonly impairs fluid intelligence, so the score distribution for this clinical group tends to shift toward lower values compared to normative samples.
When constructing a frequency distribution of RPM scores, which grouping approach is standard for presenting data in RPM manuals?
Answer: Presenting each individual raw score with its corresponding frequency
RPM manuals typically list every possible raw score with its frequency and cumulative frequency, allowing precise percentile determination.
A test-taker scores at the 95th percentile on the SPM. What does this mean in terms of score distribution?
Answer: 95% of their age-norm group scored at or below their raw score
A 95th percentile rank means 95% of the age-matched normative sample achieved a raw score equal to or lower than this person's.
Which property of the RPM score distribution allows conversion of raw scores to standardized IQ equivalents with mean 100 and SD 15?
Answer: The normal distribution of scores in the standardization sample
Because RPM norming samples approximate a normal distribution, linear transformation maps raw scores to the IQ scale (M=100, SD=15).
In the context of RPM score distributions, 'interquartile range' (IQR) is useful because it:
Answer: Captures the middle 50% of scores and is resistant to extreme outliers
IQR spans from the 25th to the 75th percentile, describing the central spread without being distorted by very high or low outlying scores.
How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy
Sources & references
Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy
- pearsonassessments.com — Test delivery, eligibility, score release · verified Oct 2026