Mensa Mensa IQ Working Memory and Processing Speed 4

Question 1

You hear the digits 8, 3, 7, 1, 5 and must repeat them in reverse order. What is the correct reverse sequence?

Accepted Answer

5, 1, 7, 3, 8

Answer

Reversing 8-3-7-1-5 gives 5-1-7-3-8.

Question 2

A processing speed task shows 60 simple math problems to be completed in 60 seconds. A test-taker finishes 45. What is their completion rate per second?

Accepted Answer

0.75 problems/sec

Answer

45 problems divided by 60 seconds equals 0.75 problems per second.

Question 3

In a dual n-back task at level 2, you must remember both the position and sound from 2 steps ago. This primarily taxes which cognitive resources?

Accepted Answer

Working memory and divided attention

Answer

Dual n-back tasks heavily load working memory while simultaneously requiring divided attention across two streams.

Question 4

A sequence of letters is shown briefly: K, F, R, M, Q, B. You are asked to recall only the consonants in alphabetical order. Which answer is correct?

Accepted Answer

B, F, K, M, Q, R

Answer

All six letters are consonants; alphabetically sorted they are B, F, K, M, Q, R.

Question 5

Which condition is most likely to impair processing speed on a timed cognitive task?

Accepted Answer

Mental fatigue and sleep deprivation

Answer

Sleep deprivation and mental fatigue significantly slow neural processing and response times.

Mensa Practice Test

Mensa Practice Test

Mensa Mensa IQ Working Memory and Processing Speed 4