Psychological instruments

Psychological instruments can be used for visual estimation of length and area, as well as for creating psychological proportional scales of length and area.

The psychology instrument of Tianjin Normal University Teaching Technology Equipment Company can measure the size of the participant's attention allocation value, which tests the participant's ability to perform two tasks simultaneously. This psychological instrument can also be used to study movements, learning processes, and fatigue phenomena.

The psychological instruments of Tianjin Normal University Teaching Technology Equipment Company can be used for visual estimation of length and area, as well as for creating psychological proportion scales for length and area.

The construction of psychological instruments: a rectangular plate supported by two brackets, with a glass of the same length in front of the plate, and each bracket consisting of two circular cakes; There is a gap between the rectangular plate and the glass plate for inserting and observing images. The rectangular board is covered by two movable sleeves, with each cover being half the length of the rectangular board; There is a scale on the back of the rectangular board, and each sleeve has an indicator on the back. The results of the line segment or area adjusted by the subjects can be read from the scale; The lines or geometric shapes drawn on a piece of paper are separated by a blank space in the middle of the paper, and there are actually two lines or geometric shapes on each piece of paper.

Tianjin Normal University Teaching Technology Equipment Company explains the usage of psychological instruments: insert a piece of paper with two horizontal lines into the slot of a rectangular board, move the left cover away from the center of the rectangular board by a certain distance, and a line of a certain length (standard stimulus) will appear. Participants are required to adjust the length of the line on the right by moving the lid on the right (to compare stimuli) to match the length of the line on the left. The length value of the matched line can be read on the scale at the back, and the difference between it and the standard stimulus length is the length estimation error of the participant. The positions of standard stimuli and comparative stimuli can be interchanged.

Main technical indicators of psychological instruments:

1. There are three types of sound stimuli: high, medium, and low. Participants are required to make judgments and reactions to different audio stimuli, press the corresponding buttons with their left hand, and record the number of correct and incorrect responses within the set time.

2. The light stimulus is distributed in a circular pattern by eight light-emitting tubes. Participants are required to make judgments and reactions to light stimuli at different positions, press the button corresponding to the light-emitting tube with their right hand, and record the number of correct and incorrect reactions within the set time.

3. The above two stimuli can be presented separately or simultaneously.

4. Time setting: 1-9 minutes, a total of nine levels.

5. Psychological instruments record the correct and incorrect responses to light or sound within a set time, with a maximum of 999 responses.

6. Automatically calculate the attention allocation quantity Q value.