| Variables | The arithmetic mean of the scale if the particle is thrown out | Variance of the scale if the particle is thrown out | Correlation of particles― belonging scale | Cronbach α if the particle is thrown out |
| 1) Difficulties during lessons | 25.69 | 50.62 | 0.53 | 0.84 |
| 2) Difficulties in learning | 25.43 | 49.56 | 0.59 | 0.84 |
| 3) Difficulties in taking written or oral exams | 25.22 | 49.75 | 0.55 | 0.84 |
| 4) Lack of time when writing an exam | 24.80 | 50.96 | 0.34 | 0.86 |
| 5) Financial difficulties during the study | 25.29 | 50.46 | 0.40 | 0.85 |
| 6) Difficulties in reading (especially loud), difficulties in understanding the read, problems in decoding new words, terminology, quickly forgetting | 25.92 | 50.29 | 0.59 | 0.84 |
| 7) Difficulties in quick writing (capturing notes), difficulties in organizing learning, handwriting problems (uncertainties, illegibility) | 25.78 | 49.47 | 0.58 | 0.84 |
| 8) Difficulties in making notes in lectures | 25.73 | 49.89 | 0.57 | 0.84 |
| 9) Difficulties with voice: inadequate height, quality, volume, resonance or duration | 26.09 | 51.48 | 0.53 | 0.84 |
| 10) Speech difficulties (omission or replacement of voices), stuttering, hastiness | 26.23 | 52.71 | 0.48 | 0.84 |
| 11) Expressive Difficulties (difficulty expressing, poor vocabulary, agrammatic sentence) | 26.17 | 52.01 | 0.56 | 0.84 |
| 12) Receptive difficulties (misunderstanding of verbal tasks, difficulties in understanding written text | 26.23 | 52.59 | 0.56 | 0.84 |
| 13) Disease of a lasting character, variable weight (diabetes, epilepsy, asthma ...) | 26.48 | 55.96 | 0.26 | 0.85 |
| 14) Difficulties in building interpersonal relationships | 26.30 | 54.28 | 0.40 | 0.85 |
| 15) Inappropriate type of behavior, mood swings, unhappiness, depression, fear, hyperactive disorder, tics | 26.14 | 52.58 | 0.43 | 0.85 |
| 16) Difficulties of movement and access to objects | 26.40 | 55.10 | 0.36 | 0.85 |