Question

True or False: The data represented in the table below are categorical.

Stated Academic Goals                         Percent of SCC Students

Academic Transfer                                                42%

Professional/Technical                                         47%

Basic Skills                                              6%

Other                                                 5%

Group of answer choices

True

False

Q2：

To test an herbal treatment for depression, 100 volunteers who suffered from mild depression were randomly divided into two groups. Each person was given a month’s supply of tea bags. For one group, the tea contained the herb mixed with a spice tea, and for the other group, the bags contained only the spice tea. Participants were not told which type of tea they had. They were asked to drink one cup of the tea per day for a month. At the end of the month, a psychologist evaluated them to determine if their mood had improved. The psychologist did not know who had the tea with the herbal ingredient added.

True or false: This study is an experiment

Group of answer choices

True

False

Q3:

To test an herbal treatment for depression, 100 volunteers who suffered from mild depression were randomly divided into two groups. Each person was given a month’s supply of tea bags. For one group, the tea contained the herb mixed with a spice tea, and for the other group, the bags contained only the spice tea. Participants were not told which type of tea they had. They were asked to drink one cup of the tea per day for a month. At the end of the month, a psychologist evaluated them to determine if their mood had improved. The psychologist did not know who had the tea with the herbal ingredient added.

Did this study have a placebo group? Choose the best answer.

Group of answer choices

No, because everyone got some kind of tea.

Yes, both groups got the placebo.

No, because there was no medicine here, so there can't have been a placebo group.

Yes, the plain spice tea was the placebo

Answer 1

Q1: True.

Q2: Experiment is a study in which conditions are under the direct control of the investigator. Here the study is under the control of investigator, thus the study is an experiment. Hence the statement is true.

Q3: Yes, the plain spice tea was the placebo.