Question

Question 13

A major company would like to assess the impact of using a professional trainer to conduct a confidence-building workshop with their salespeople. A sample of 16 workers is obtained. Half (n = 8) are randomly assigned to attend the workshop and the other half (n = 8) serves as a control group. Two weeks later, each of the participants is given a questionnaire measuring the level of self-confidence. Please choose the statistical test that is most appropriate for this research.

Group of answer choices

Independent Samples t-test

Pearson r Correlation Coefficient

One-way ANOVA

Repeated Measures t-test

Question 14

The presence or absence of conversations directed to comatose patients was used to investigate a patients’ intracranial pressure. Each patient’s intracranial pressure was measured for all levels of the experiment. What is the dependent variable in this research?

Group of answer choices

Intracranial pressure

Comatose Patient

Both A and C

Conversations

Question 15

A researcher is testing the effect of a new cold and flu medication on mental alertness. A sample of eleven college students is obtained and each student is given the normal dose of the medicine. Thirty minutes later, each student’s performance is measured on a video game that requires careful attention and quick decision making. Performance on this video game has been evaluated in previous years and shown an average performance of 15. The scores for the eleven students show a mean of 12 and a standard deviation of 2. How many samples were studied in this research?

Group of answer choices

1

0

3

2

Answer 1