8-in-1 IQ Scale Bundle

8-in-1 IQ Scale Bundle combines eight cognitive exercises: Dual N-Back, Complex Working Memory, Space Task, Schulte table, Anagrams, Mental Math, Corsi and Fastest. The exercises cover memory, attention, reasoning, calculation and reaction speed.

Memory exercises

In Dual N-Back, you watch an image appear in one square of a grid and listen to letters. You respond when the current image position or letter matches one from one or two steps earlier. The game includes advice on practice frequency and moving to a higher level when you reach an 80% success rate.

Complex Working Memory has spatial and verbal versions. Each round starts with decision tasks, followed by an item to remember; after all rounds, you recall the items. In the spatial version, you decide whether a figure is symmetrical across the Y axis. In the verbal version, you judge whether displayed characters form a correctly spelled word, remember a letter each round, then recall the letters in order.

Space Task trains episodic memory through remembering where things were. Corsi presents a sequence of blocks for you to repeat in order; the sequence grows longer, and the exercise measures correct sequences and the longest sequence remembered.

Attention and problem solving

The Schulte table presents randomly arranged numbers in a grid, usually 5×5, for visual search and concentration practice. In Anagrams, you find as many valid anagrams as possible within the time limit. Mental Math gives you calculations to do in your head, while Fastest tests your reaction speed.