The form of the evaluation scale of the evaluation scale

The evaluation scale is divided into the following according to the form of the scale:

1. Pictorial evaluation scale – the respondent is asked to choose on a pictorial continuum with two fixed endpoints; - Three pictorial evaluation scales.

2. Enumerate the evaluation scale - the respondent is asked to choose from a limited number of categories.

The enumerated evaluation scale is easier to construct and operate than the graphical evaluation scale, and it is also better than the graphical evaluation scale in terms of reliability, but it cannot measure the nuances of the object like the graphical evaluation.

Advantages of rating scales: time-saving, fun, versatile, can be used to handle a large number of variables, etc.

There are two possible errors in this approach:

Benevolence error: Some people tend to give a higher evaluation when evaluating the object, which produces the so-called benevolence error; Otherwise, a negative benevolent error is generated. For example, the teacher gives the student a grade.

Intermediate bias error: Some people are reluctant to give a high or low evaluation to the object being evaluated, especially when they do not understand or are difficult to express in an appropriate way, they tend to give intermediate evaluation.

Ways to prevent various errors:

A method to prevent intermediate bias errorsadjust the intensity of narrative adjectives; Increase the proportion of evaluative statements in the middle of the total scale; The semantic difference between the levels near the two ends of the scale is greater than the difference in ideas between the middle levels; Increase the hierarchy of the measurement scale.

2. How to prevent the effect of halosEvaluate only one variable or feature at a time for all the objects to be evaluated; Only one feature is listed on each page of the questionnaire.

There are four main methods to evaluate the reliability of the scale, which are test-retest reliability, replica reliability, internal consistency reliability and rater reliability.

The reliability is based on the true fraction theory, but in the actual measurement, the true score is difficult to obtain due to the existence of errors, so we generally use statistical methods to obtain the reliability of the test by calculating the correlation coefficient.

The relationship between validity and reliability.

The relationship between validity and reliability can be understood using the formula o=t+s+r that makes up the measured values. If the measurement is completely valid, i.e. 0=t, s=0, r=0, then the measurement must be completely credible, and if the reliability of the scale is insufficient, it cannot be completely valid, because there is o=t+r.

If the scale is completely credible, it can be fully valid, or it may not be able to achieve it, because there may be errors, although the lack of reliability necessarily lacks validity, but the size of the reliability does not reflect the size of the validity.

Reliability is a necessary but not sufficient condition for validity. From a theoretical point of view, the quantity should have sufficient validity and reliability; From a practical point of view, a good scale should also be practical. Practicality refers to the economy, convenience, and interpretability of the scale.

Methods for evaluating the reliability of the scale:

1. Retest reliability method: the objects visited by the same group of stool mold covers should be measured twice at different times under the same situation as far as possible.

3. Half reliability method and a reliability coefficient method.

Reliability refers to the degree of consistency of the results obtained when the same method is used to repeatedly measure the same object, and the reliability index is mostly based on the correlation coefficient.

Denote. The half-reliability method divides the survey items into two halves, calculates the correlation coefficient of the two halves, and then estimates the reliability of the entire scale.

The reliability coefficient of the total scale should be above and acceptable, and the reliability coefficient of the subscale should be above and acceptable.

Methods for evaluating scale validity

1) Content validity.

Whether each item of the scale measures the content it wishes to measure is generally obtained by expert scoring.

2) criterion association validity.

A recognized valid questionnaire was used as the standard to test the correlation between the new scale and the standardized measurement results, and the correlation coefficient of the scores of the two scales was used to express the standard association validity, but it is difficult to find a generally recognized valid scale.

3) Construct validity.

It is used to evaluate whether the measurement results are related to theoretical assumptions or theoretical frameworks.

Correlation. When designing the questionnaire, the researcher generally starts from the theoretical framework of the problem under study, assumes the existence of a certain idea, and then designs the question according to this idea to form the questionnaire.

Hello, I am glad to answer for you that a good evaluation scale should definitely include a performance dimension, : The answer is: The evaluation scale is a quick teaching evaluation tool that can provide effective feedback and promote student learning.

Evaluation scales also save a lot of time by providing students with timely, meaningful feedback while grading. Evaluation scales also help to develop students' critical thinking, promote communication with others, improve teaching standards, and create a level playing field. The evaluation scale consists of four basic components:

The task description, the evaluation scale (achievement level, which can take the form of a "grade"), the dimensions of the evaluation (the breakdown of the skills or knowledge involved in the task) and a description of the components of each performance level (specific feedback), and the task indicators should be listed separately in each section. Whether the design of the scale is "evaluation of learning" or "evaluation for learning", the change of an English word reflects that grading is not the ultimate goal, but feedback and promotion of students' learning through evaluation is the ultimate goal of evaluation. Involving students in the construction of evaluation scales has the following advantages:

First of all, it can prevent students from misinterpreting the teaching tasks and make them truly understand the learning objectives and evaluation criteria. Enhance students' awareness of participation and learning initiative, encourage students to participate in the formulation of learning goals, and such learning goals are students' own goals; Having self-assessment tools created by students or used can also reduce the workload of teachers.

Summary. Hello dear, I'm glad to answer for you! A good rating scale should include performance dimensions that are: 1) academic performance; (2) sports; (3) appearance; (4) love relationships; (5) social interaction; (6) Talk to others. There are two other subscales.

Dear, hello years old Wang rotten is happy to answer for you! A good evaluation of the Sedan Chair Scale should include the performance dimensions are: 1) academic performance; (2) sports; (3) appearance; (4) love relationships; (5) social interactions; (6) Talk to others. There are two other subscales.

There are three dimensions of emotion: pleasant-unpleasant, attention-rejection, and activation level. Emotional experiences can vary in intensity from weak to strong. For example, joy can range from suitability and pleasure to joy, great joy, and joy in a sedan chair; Ruler's mourning can be sad from sadness, sadness, grief, and misery; Anger can range from mild dissatisfaction, anger, anger, and anger to anger and rage; Fear can range from fear, fear, and fright.

The greater the intensity of the emotion, the deeper the whole self is involved in the emotion.