Should parents buy cell phones for their children?

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on vocabulary words:
No of characters: 460.0 444.711560045 103% => OK
No of words: 106.0 116.580246914 91% => More words wanted. You may: choose simpler words or speak faster or remove hesitations or remove long pauses, and fully use the time, do NOT save one or two seconds.
Chars per words: 4.33962264151 3.81502700369 114% => OK
Fourth root words length: 3.2086804361 3.28032121604 98% => OK
Word Length SD: 2.12747876496 1.8723322822 114% => OK
Unique words: 82.0 76.076318743 108% => OK
Unique words percentage: 0.77358490566 0.655143326166 118% => OK
Syllable count: 146.7 141.574747475 104% => OK
Avg_syllables_per_word: 1.4 1.21358024691 115% => OK

Performance on coherence:
Topic speech coherence ratio: 0.0189074361541 0.0738818816272 26% => It may have issues on recording quality or the content is not so closely related to content.

Acoustic performance on paragraphs:
How many acoustic paragraphs: 3.0 3.20202020202 94% => OK
Average paragraph length: 35.3333333333 60.3232687746 59% => OK
STD paragraph length: 43.6068292307 17.3634065801 251% => Paragraph length changes often.
Average paragraph duration: 15.5366666667 22.9064221017 68% => OK
STD paragraph duration: 18.5165553552 6.49597621602 285% => The duration of acoustic paragraphs changes often.

Acoustic performance on sentences:
How many acoustic sentences: 36.0 31.1548821549 116% => OK
Average acoustic sentence length: 2.94444444444 4.0588447711 73% => OK
STD acoustic sentence length: 2.08092453337 3.18357895611 65% => OK
Average acoustic sentences duration: 1.22222222222 1.46810986539 83% => OK
STD acoustic sentences duration: 0.684077282473 1.01537252472 67% => OK

Acoustic performance on acoustic silence:(An acoustic silence means a little pause between two or more words)
How many acoustic silence: 37.0 28.6644219978 129% => It means the content is not pronounced smoothly or it is pronounced slowly. It is word by word.
Total acoustic silence duration: 7.87 5.28593714927 149% => It may have a lot of silences or every silence is too long.
Average acoustic silence duration: 0.212702702703 0.187982170178 113% => OK
STD acoustic silence duration: 0.17881968343 0.154715141812 116% => OK

Acoustic performance on acoustic words:
Total word duration: 36.09 35.408047138 102% => OK
Average word duration: 0.340471698113 0.306236595465 111% => OK
STD word duration: 0.170661211759 0.198589292138 86% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 2.0 6.3164983165 32% => Good job, the lower, the better.
Total_disfluencies_duration: 1.76 5.14435465769 34% => Good job. The lower, the better.
Total acoustic noise duration: 1.17 2.80480359147 42% => OK

Acoustic rates:
Total speech duration: 46.61 45.0716498316 103% => Need to finish the speech on time.
Compare to expected duration: 1.03577777778 1.00159221848 103% => OK
Rate of silence: 0.79382106844 0.637764685501 124% => Less acoustic silences wanted.
Rate of speech: 2.27419008796 2.58495923209 88% => Need to bring more content.
Rate of speech by unique words: 1.75927912465 1.68816559523 104% => OK
Rate of word duration by unique words: 2.27209753394 2.15290372801 106% => OK
Average articulation rates: 0.296693207547 0.343871460585 86% => OK

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Maybe the speech is too long. It should be in 45 seconds.

Rates: 66.6666666667 out of 100
Scores by speech e-grader: 20.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.