Exam 8: Two-Group Design: Texting: I Cant Get You Out of My Mind

The effect size is the:

An experimenter _____ the independent variable and _____ the dependent variable.

Each of the following bolsters confidence in the obtained results of an experiment, EXCEPT:

Professor Mateo is designing an experiment to test whether playing music during his exams improves students' grades. The students are unaware that this grade is not part of their cumulative average. Which of the following will increase the mundane realism of his study?

In an experiment where researchers want to make sure every participant has an equal chance of being selected into either the experimental or control condition _____ is used.

An experimental hypothesis identifies and predicts how the:

Madison is interested in knowing whether there is a statistically significant difference between participants' scores in the control and experimental conditions. She should look at the _____ in order to determine if the difference is greater than what would be expected based on chance alone.

By choosing to conduct a study in a research laboratory instead of its natural setting, researchers gain:

(Scenario III) The experimental group in Scenario III included those who received _____, whereas the control group included those _____.

Laci's recent cumulative history exam needed to be long enough to address the various concepts taught, but short enough to be completed in a single class period. Which of the following tests would have the greatest sensitivity to detect an effect?

Lila is interested in examining the hypothesis that women who wear more makeup tend to be greeted with more eye contact and smiles from others. In her study female participants in the experimental group are those who are assigned to _____, while female participants in the control group are assign to _____.

A t-test for independent means is appropriate for studies that use a:

Duncan designed a study to examine whether sunscreen with a higher SPF was able to protect participants from sunburn better than sunscreen with a lower SPF. To test this, he randomly assigned half of his participants to wear a sunscreen with an SPF of 50. The other half were assigned to wear a sunscreen with an SPF of 35. After participants spent five hours in the sun, Duncan compared the level of sunburn across the groups. Which of the following would indicate that his two-group experimental study yielded a significant difference?

The use of a confederate in a study is helpful because a confederate will:

Imagine you are a journal editor. Researchers send you their manuscripts and your job is to make sure their results merit sharing with others in the published psychological community. Which of the following studies would you LEAST want to publish?

If you were a researcher interested in examining whether high levels of trait anxiety cause greater interpersonal difficulties with others you would need to conduct a(n):

Felipe is interested in testing whether people are more likely to take gummy vitamins than regular (hard pill) vitamins. In his study, participants are randomly assigned to one of two groups. One group watches a video of someone having difficulty swallowing and then takes a vitamin.The experimental group is composed of participants who:

An important condition for establishing causation is covariation. This is:

Which of the following is true about experimental results?

Researchers are hoping to _____ the null hypothesis by showing that _____.