Some dimensions, like (fluency indicators) Speaking Rate and Sustained Speech, have a more noticeable impact on your overall TOEFL Speaking score. Other dimensions, like Repetitions, have a lesser impact.

Understanding the different impacts of these dimensions helps you focus on the areas that have a more significant influence on your overall score.

So, when practicing your speaking skills, pay attention to dimensions that have a greater impact and work on improving them. This will help you create a more well-rounded and effective speaking performance.

Technical Explanation 

In SpeechRater, different dimensions are assessed to provide an overall evaluation of the speaker's performance. These dimensions are weighted differently in terms of their impact on the overall score.

The weighting of dimensions is determined based on the analysis of a large dataset of speech samples and the correlation of each dimension with the overall speech quality. Through statistical modeling and machine learning algorithms, the system assigns weights to different dimensions to reflect their respective contributions to the overall score.

By understanding the varying impact of dimensions, speakers can focus their efforts on areas that have a higher weightage in the score calculation. This allows for targeted practice and improvement in specific dimensions to optimize the overall performance.

Impact means how important a dimension is to your SpeechRater™ score. My Speaking Score calculates and presents Impact on a scale of 4.

Impact Scale

Here is the scale used by My Speaking Score:

* weak

* * mild

* * * strong

* * * * very strong

All 12 SpeechRater™ dimensions have an impact indicator below the chart. In this example, Sustained Speech has a "very strong" impact on your overall TOEFL Speaking score. It's a performance indicator you need to pay attention to.

What does Impact mean, practically?

A dimension with a weak Impact (like Repetitions) has less of an impact on your SpeechRater™ score than a dimension with a strong Impact (like Sustained Speech). 

In summary, the SpeechRater system employs statistical modeling and weighting techniques to assign different levels of impact to each dimension. Sustained Speech (for example) is given higher weightage due to its significant influence on overall comprehension, while dimensions like Repetitions (for example) have a lesser impact on the overall score. 

This nuanced evaluation on My Speaking Score enables speakers to identify and prioritize areas of improvement for enhanced performance.

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