Mathematics, 18.10.2019 21:30 girly37
One hundred volunteers who suffer from severe depression are available for a study. fifty are selected at random and are given a new drug that is thought to be particularly effective in treating severe depression. the other 50 are given an existing drug for treating severe depression. a psychiatrist evaluates the symptoms of all volunteers after 4 weeks in order to determine if there has been substantial improvement in the severity of the depression. in which situation would this study be double blind?
1. if neither the volunteers nor the psychiatrist knew which treatment any person had received
2. if all volunteers were not allowed to see the psychiatrist nor was the psychiatrist allowed to see the volunteers during the session when the psychiatrist evaluated the severity of the depression
3. all of the above
4. if neither drug had any identifying marks on it
Answers: 2
Mathematics, 21.06.2019 14:30
Leo is going to use a random number generator 4 0 0 400 times. each time he uses it, he will get a 1 , 2 , 3 , 4 , 1,2,3,4, or 5 5. what is the best prediction for the number of times that leo will get an odd number?
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Mathematics, 21.06.2019 20:30
Lola says these two expressions have the same value. expression a expression b which explains whether lola is correct?
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Mathematics, 21.06.2019 22:00
In the sixth grade 13 out of 20 students have a dog if there are 152 sixth grade students how many of them have a dog
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One hundred volunteers who suffer from severe depression are available for a study. fifty are select...
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