Study: NCT05662930

Intervention type: BEHAVIORAL
Intervention: Second arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the first subtraction process, patients were asked to subtract 7 from 6828 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Second arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the first subtraction process, patients were asked to subtract 7 from 6828 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Third arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 13 from 9561 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Third arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 13 from 9561 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Fourth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 8 from 5113 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Fourth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 8 from 5113 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Fifth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 14 from 8318 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Fifth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 14 from 8318 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Sixth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 17 from 9994 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.

Intervention type: BEHAVIORAL
Intervention: Sixth arithmetic problem solving
Description: In the same A4-sized white paper that was placed in front of each patient on a table, immediately after the previous subtraction process, patients were asked to subtract 17 from 9994 for another 100 seconds.~When the patient made a calculating error, the researcher stood in front of the patient and asked them to make corrections by issuing a warning.