Social Studies, 07.10.2019 18:20, ansley81

Select the definition of a block design experiment. a study in which all subjects are randomly assigned to treatment groups, allowing for comparison of those treatments a study in which subjects are randomly assigned to treatment groups and each treatment group is further divided into groups containing similar individuals a study in which subjects are separated into similar groups and then subjects within each group are randomly assigned to treatments a study in which researchers divide subjects into similar groups and observe variables of interest within each group a study in which one subject receives two treatments in random order

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Business, 27.07.2019 09:20, coolconnor1234p0sv4p

Researchers recruited 20 volunteers - 8 men and 12 women - to take part in an experiment. they randomly assigned the subjects into two groups of 10 people each. to their surprise, 6 of the 9 men were randomly assigned to the same treatment. should they be surprised?

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Mathematics, 12.08.2019 18:10, adriannamartinez000

Aresearch group interested in understanding the effect of listening to classical music on learning mathematics conducted a study. one hundred students were randomly assigned to one of two groups. the first group listened to classical music as they learned a new lesson. the second group learned the same lesson with no music playing. both groups were tested on the new material to determine how much they learned. the results for the two groups were compared. what kind of study is this? a). this is an observational study because students were randomly assigned to groups. b).this is an observational study because a treatment was applied to both groups. c).this is an experiment because a treatment was applied to a group. d).this is an experiment because students were able to choose which group to join.

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Mathematics, 23.08.2019 08:50, Brainly264

Aresearch group interested in understanding the effect of listening to classical music on learning mathematics conducted a study. one hundred students were randomly assigned to one of two groups. the first group listened to classical music as they learned a new lesson. the second group learned the same lesson with no music playing. both groups were tested on the new material to determine how much they learned. the results for the two groups were compared. what kind of study is this? this is an observational study because students were randomly assigned to groups. this is an observational study because a treatment was applied to both groups. this is an experiment because a treatment was applied to a group. this is an experiment because students were able to choose which group to join.

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Mathematics, 18.10.2019 17:30, bluenblonderw

How does randomization in an experiment combat response bias? . a. all the subjects that are biased one way get assigned to the treatment group. b. when subjects are randomly assigned to treatment and control groups, they will not exhibit response bias. c. response bias cannot be eliminated, but it should cancel out between the treatment and control groups. d. if the experimenter does not know which subjects are in the treatment group, he will not mistakenly cause response bias. e. in a simple random sample chosen from the population, there will be no response bias.

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