Each subtest measures a different aspect of cognitive abilities. Matrix reasoning primarily assesses abstract reasoning, pattern recognition, and problem-solving skills. On the other hand, block design evaluates visual-motor coordination, spatial processing, and visuospatial abilities. It's possible that you may excel more in abstract reasoning than in visual-motor coordination.
Cognitive Strengths: People often have cognitive strengths and weaknesses, and these can influence how they perform on specific types of tests. For example, if you have strong abstract reasoning abilities, you might perform exceptionally well on matrix reasoning but not necessarily as well on tasks that require visual-motor coordination.
Familiarity: Some people may have more exposure or experience with certain types of tasks, making them more adept at those specific tasks. If you have encountered tasks similar to matrix reasoning more frequently in your life, you might feel more comfortable and perform better on that type of test.
Testing Conditions: External factors like test anxiety, distractions, or fatigue can also impact test performance. If you were feeling more anxious or distracted during the block design test, it could have affected your score.
Practice Effects: If you've taken similar cognitive tests before, there might be a practice effect. That is, if you had previous experience with matrix reasoning tasks, you might have become more proficient at them, leading to a higher score.
Individual Differences: Each person is unique, and cognitive abilities can vary significantly from one individual to another. It's entirely normal for individuals to have different strengths and weaknesses in cognitive domains.
Remember, IQ tests and cognitive assessments provide a snapshot of your cognitive abilities at a specific point in time. They are not an absolute measure of intelligence or intellectual potential. If you have concerns about your scores or cognitive abilities, it's best to consult with a qualified psychologist or neuropsychologist who can provide a comprehensive evaluation and interpretation of your results. They can also offer personalized recommendations and interventions based on your unique cognitive profile.