D2 Attention Test: Measure Your Focus and Speed

The D2 Attention Test is a widely recognized psychological assessment designed to measure an individual's selective and sustained attention, processing speed, and concentration. It's particularly useful for evaluating how well someone can focus on a task while ignoring distractions.

Age Range: This test is suitable for individuals aged 9 years and older.
Purpose: The primary goal of the D2 Attention Test is to assess **operational attention and speed. It provides valuable insights into an individual's ability to maintain focus and process visual information quickly and accurately.
How it's Administered: Participants are presented with rows of letters and symbols. Their task is to mark only the symbols that meet specific criteria. For example, they might be asked to cross out all 'd's that have two dashes below them, while ignoring 'd's with one dash or other letters.
Key Feature: A crucial aspect of the D2 Attention Test is that it evaluates both speed and accuracy simultaneously. This means that not only is the number of correct responses considered, but also the time taken and the number of errors made. This dual assessment provides a comprehensive understanding of an individual's attentional capabilities.

The results of the D2 Attention Test can be used in various fields, including clinical psychology, educational settings, and occupational assessments, to understand cognitive profiles and identify potential attention deficits.

Practice Your D2 Attention Skills

Below are 30 practice questions designed to simulate the D2 Attention Test. Your goal is to work as quickly and accurately as possible.

General Instruction: Click on the specified characters according to the rules provided for each section. They will highlight green.

Section 1: Click on 'd' with two dashes below it (d̳)

Example: f b d̳ o p q d r s d̳ x y z

a s d f g h j k l ş i d̳ e r t y u ı o d̳ p
d̳ c v b n m , . ö ç p o d d̳ ı u y t r e d̳ w
d̳ q w e r t y u ı o p ğ ü d̳ i ş l k j h g f d
z x c v b n m d̳ ö ç d̳ p o ı u y t r e w q d
p o ı u y t r e d̳ w q a s d f g h j k l d̳ ş
b n m , . ö ç p o ı u y t r e w q a s d̳ f g
d̳ h j k l ş i ü z x c v b n m ö d̳ ç p o ı u
e r t y u ı o p ğ ü ş i d̳ z x c v b n m , . d̳
w q a s d f g h j k l ş i d̳ ü z x c v b n m
d̳ o p ğ ü ş i z x c v b n m , . ö ç d̳ p o ı

Section 2: Click on 'p' with one dot above it (ṗ)

Example: t r y u ṗ i o p g u s i z x c v b n m o c

a s d f g ṗ h j k l ş i ü z x c v b n m ö ç
r t y u ṗ ı o p ğ ü ş i z x c v b n m , . ö ç
w q a s d f g ṗ h j k l ş i ü z x c v b n m
d f g h j k l ş i ü z x c v b ṗ n m , . ö ç p
b n m , . ö ç ṗ o ı u y t r e w q a s d f g h
j k l ş i ü z x c v b n m , . ö ç ṗ o ı u y t
e r t y u ı o p ğ ü ş i z x c v b n m , . ö ç ṗ
q a s d f g h j k l ş i ü z x c v b n m ö ç ṗ
y u ı o p ğ ü ş i z x c v b n m , . ö ç ṗ o ı
d̳ f g h j k l ş i ü z x c v b n m , . ö ç ṗ o

Section 3: Click on 'b' with an exclamation mark on its left and an asterisk on its right (!b*)

Example: a s !b* d f g h j k l ş i ü z x c v b n m ö ç

a s !b* d f g h j k l ş i ü z x c v b n m ö ç
r t y u ı o p ğ !b* ü ş i z x c v b n m , . ö ç
w q a s d f g h j k l ş i ü z x c v !b* n m
d f g h j k l ş i ü z x c v b n m , . ö !b* ç p
b n m , . ö ç p o ı u y t r e w !b* q a s d f
j k l ş i ü z x c v b n m , . ö ç p o ı u y !b* t
e r t y u ı o p ğ ü ş i z x c v b n m , . ö !b* ç
q a s d f g h j k l ş i ü z x c v b n m ö !b* ç
y u ı o p ğ ü ş i z x c v b n m , . ö ç p o !b* ı
d̳ f g h j k l ş i ü z x c v b n m , . ö ç p !b* o

Understanding Your Performance

This D2-style exercise helps you get a feel for the real test. When evaluating your own performance, consider these key aspects:

Section 1 Analysis: Foundational Focus

This section primarily assesses your ability to quickly grasp and apply a basic rule. Consider:

Initial Speed: How fast did you start marking the correct characters?
Consistency: Did your speed remain relatively constant throughout the section, or did you slow down?
Omission Errors: Did you miss any of the target characters?
Commission Errors: Did you accidentally mark any characters that did not fit the criteria?

Section 2 Analysis: Adaptability and Selective Attention

The change in instruction in this section tests your cognitive flexibility and ability to adapt your focus to a new rule. Reflect on:

Adaptation Time: How quickly did you switch your focus to the new target character and its specific mark?
Increased Errors/Decreased Speed: Did you notice a temporary dip in accuracy or speed at the beginning of this section due to the rule change?
Maintaining Focus: How well did you sustain attention on the new criteria amidst other distracting characters?

Section 3 Analysis: Complex Discrimination and Sustained Concentration

This final section introduces a more complex rule, requiring you to process multiple criteria simultaneously. This assesses higher-level selective attention and resistance to distraction. Observe:

Dual Criteria Processing: How efficiently could you identify characters that met both the left and right side conditions?
Distraction Resistance: Did the increased complexity lead to more errors or a significant slowdown? This indicates how well you can filter out irrelevant information.
Endurance of Attention: By this point, fatigue might set in. Your performance here can reveal your sustained attention capacity under pressure.

Overall Assessment: Speed vs. Accuracy

In a true D2 Attention Test, your performance is measured by more than just the number of correct responses. It's about the balance between:

Processing Speed: How quickly you can scan and identify targets.
Accuracy: The precision of your responses (minimizing both missed targets and incorrect marks).
Concentration Stability: Your ability to maintain consistent performance throughout the test, resisting fatigue and distraction.

This self-assessment provides a foundational understanding of your attentional strengths and areas where you might benefit from further practice to enhance your focus and processing efficiency.