The purpose of this app is to test and measure how well people can adapt to the changing rules.

It is actually challenging your brain and testing your mind's adaptability.

Indeed, this app is inspired by the original work by Grant, D. A., & Berg, E. A. (1948) - A Behavioral Analysis of Degree of Reinforcement and Ease of Shifting to New Responses in a Weigl-Type Card-Sorting Problem. Journal of Experimental Psychology, 38, 404-411.

Usage instructions:

1. You need to match a card with one of the four cards on the buttons.
2. After the selection you will get feedback whether the card’s selection is correct or not.
3. If not, you have to apply different rules and match again.
4. In general, there are 3 variants of logic or rule you could use - objects on the card have color, shape and count.
5. After you find the rule you may use it for a while, because the rule will stay the same for a number of questions, depending on the playing mode.
6. But that is not all. The rule is changing and you have to adapt by getting feedback from the app in order to match the card again.
7. So, the goal is to answer all questions trying to find each rule as fast as possible and have as many as possible correct answers at the end.

Features:

1. Questions organized as an test sequence.
2. There are different modes of playing - shorter and longer questionnaires - starting from 18-30 questions and going up to 72-120 questions.
3. Shows the result after the test (count of correct/incorrect, time used).
4. Leaves the interpretation and categorization of the results open to you and at the same time if you have better scores this means bigger mind agility.
5. High scores – keeps track and shows your best result for each mode.
6. Supports different color palettes for different tastes.

Permissions:

The app uses ACCESS_NETWORK_STATE and INTERNET permsisions, because it shows home ads and they open the default browser on the device, going to one of our other apps' page on the store or on the website of Metatrans Apps. To be more precise, if the other app is available on the store, from which the app is downloaded, then opens the app page of the other app on the same store. If still the app is not available on the store, then opens the app page on our website. The app pages on our website have app demo video on YouTube, so a connection to youtube domain will also be listed in order to visualize the page in the browser. Our website is created by WordPress, so connections to other domains could be opened as well for technical purposes (e.g. downloading text fonts css).

Your feedback and/or review is more than welcome.

Anti-Features:

• Ads: The application contains advertising.