Should parents buy cell phones for their children?

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

Performance on vocabulary words:
No of characters: 405.0 444.711560045 91% => OK
No of words: 111.0 116.580246914 95% => 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: 3.64864864865 3.81502700369 96% => OK
Fourth root words length: 3.24586718041 3.28032121604 99% => OK
Word Length SD: 2.16711145254 1.8723322822 116% => OK
Unique words: 79.0 76.076318743 104% => OK
Unique words percentage: 0.711711711712 0.655143326166 109% => OK
Syllable count: 127.8 141.574747475 90% => OK
Avg_syllables_per_word: 1.2 1.21358024691 99% => OK

Performance on coherence:
Topic speech coherence ratio: 0.0202203677737 0.0738818816272 27% => 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: 5.0 3.20202020202 156% => OK
Average paragraph length: 22.2 60.3232687746 37% => The average paragraph length is low.
STD paragraph length: 11.5481600266 17.3634065801 67% => OK
Average paragraph duration: 8.808 22.9064221017 38% => The speaking content is not well organized.
STD paragraph duration: 3.67612513389 6.49597621602 57% => OK

Acoustic performance on sentences:
How many acoustic sentences: 39.0 31.1548821549 125% => OK
Average acoustic sentence length: 2.84615384615 4.0588447711 70% => OK
STD acoustic sentence length: 2.14282896572 3.18357895611 67% => OK
Average acoustic sentences duration: 1.04897435897 1.46810986539 71% => OK
STD acoustic sentences duration: 0.774178786983 1.01537252472 76% => 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: 7.49 5.28593714927 142% => It may have a lot of silences or every silence is too long.
Average acoustic silence duration: 0.202432432432 0.187982170178 108% => OK
STD acoustic silence duration: 0.211384182146 0.154715141812 137% => OK

Acoustic performance on acoustic words:
Total word duration: 32.31 35.408047138 91% => OK
Average word duration: 0.291081081081 0.306236595465 95% => OK
STD word duration: 0.164165107788 0.198589292138 83% => OK

Disfluencies: like hesitations, or 'ehn' or taking a long time to pronounce a word:
How many disfluencies: 5.0 6.3164983165 79% => OK
Total_disfluencies_duration: 3.59 5.14435465769 70% => OK
Total acoustic noise duration: 2.68 2.80480359147 96% => OK

Acoustic rates:
Total speech duration: 44.04 45.0716498316 98% => Talk more. Do not save time. People can talk 4-5 words in one second.
Compare to expected duration: 0.978666666667 1.00159221848 98% => OK
Rate of silence: 0.840145322434 0.637764685501 132% => Less acoustic silences wanted.
Rate of speech: 2.5204359673 2.58495923209 98% => OK
Rate of speech by unique words: 1.79382379655 1.68816559523 106% => OK
Rate of word duration by unique words: 2.44506344785 2.15290372801 114% => OK
Average articulation rates: 0.28427345045 0.343871460585 83% => OK

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Rates: 73.3333333333 out of 100
Scores by speech e-grader: 22.0 Out of 30
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Note: the speech e-grader does NOT examine the meaning of words and ideas.