1.What type of investigation is this? 2.What is the study hypothesis? 3.Is the c
ID: 3201386 • Letter: 1
Question
1.What type of investigation is this?
2.What is the study hypothesis?
3.Is the control group correctly assigned?
4.Does the method of data collection raise issues of precision and accuracy?
Cries Syndrome: Caused by Television o Bad Taste? A medical coudition kuown as Cries syndrome has been described as occurring a 7 to 9 years old. The condition children characterized by episodes of nninterrupted crying lasting at leastan hour per day for 3 consecutive days. The diagnosis also incindes symptoms of sore throat, runny nose, and fever which precedes the onset of the crying and are severe enough to keep the child out of school. vestigators identifie 100 children with Cries syudrome. For each Cries syn-drome child a classmate was chosen for comparison from among those who did not miss school. The study was conducted more than one month after the onset of symptoms. The investigators examined 20 variables, which included all the fac- tors they could think of as being potentially associated with Cries syndrome. They collected data on all medication use, number of spankings, hours of television viewing, and number of hours at bone, as well as 16 other variables Using pictures, they asked the childreu to ideutify the medicatious they had takeu while they had Cries syud mome. Their Cries syndrome were also asked to mse the pictures to identify medications taken during the same time period classmates withon The investigators then asked each child to classify each medica- tion taken as a good-tastiug or bad-tasting medicatiou. The data on spalukings were obtained from the primary caregiver. The investigators found the following data: Percentage of children who reported taking bad tasting medication Cries sy udrome: 90% Controls: 10% Average number of spaukings perday Cries syndrome: l Co ols 2 Average number of television viewing hours per day Crics sy udrome: 8 (rauge 5 to 12) Controls: 2 (range 0 to Among the 20 variables, analyzed one at a time, the above were the only ones that were statistically signif cant using the usual statistical methods. The p values were 0.05 except for the honrs of television, which had a P-value of 0.00 The investigators drew the following conclusions: l. Bad-tasting medication is a contributory cause of Cries syndrome because it was strongly associated with Cries syndrome 2. Spanking protects children from es syndrome because the controls had an increased frequency of being spanked Television viewing at least 4 hours per day is required for the developmcut of Crics syndro ne because all children with Cries syndrome and none of the controls watched television more than 4 honrs per day dnring the period under investigation. l. Because Cries syndrome patients were 9 times as likely to take bad-tasting medication, the investigators concluded that removing bad-tasting medication from the market would eliminate almost90% of Cries syndrome cases an children like those in this investigation 5. Iu addition, regular spanking of all children 7 to 9 years old should be widely used as a mcthod of preventing Cries sy udrome Now to get an idea of what you will be learning in the "Studying a Study" section, see if yon can answer the following questionExplanation / Answer
Answer : ( 1 ) Here the type of investigation is about paired - Case Control Study.
Answer : ( 2 ) No hypothesis is stated.
Answer : ( 3 ) No, because the control group remained in school while the study group were at home.
Answer : ( 4 ) Yes. There were opportunities for chance or bias to affect the precision and accuracy of the assessment.
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