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

Which of the following steps in the research process would take place after data analysis?

Marcus is interested in examining whether attending preschool makes children more extraverted. In designing a study to examine this relationship, which of the following would NOT be a potential extraneous variable?

Kimberly wants to know whether running on a treadmill leads to more weight loss than running outside. To test this hypothesis, she randomly assigns participants to either run on a treadmill or run on an outdoor trail. She then measures their weight loss. Would it be appropriate for her to analyze her data using an independent samples t-test?

A sign of a strong and empirically sound research study is when other researchers are able to successfully _____ the previous study.

Professor Tompkins notices that rats run quickly through a maze when exposed to loud noise. Which of the following is necessary to transform this observation into a two-group experimental design?

Luciana believes that practice makes perfect. To empirically test her belief, she conducts a study with two conditions. In one condition participants are asked to memorize a list of words after reviewing them only once. In another condition, they are asked to memorize a list of words, but are allowed to review them four times before being tested. If the results of Luciana's independent samples t-test revealed: t(50) = 5.07, p = .00, d = .73, what conclusion can she draw?

Valentino is a health psychologist who is working on a campaign to encourage people to take the stairs instead of the elevator. He places information in the elevators in his building. In one location the information highlights the negative consequences of taking the elevator. In another location, the information highlights the positive consequences of taking the stairs. He then measures how many people change their behavior at each location. What measure could Valentino include as a manipulation check?

The _____ hypothesis is the prediction that there will be no difference in the dependent variable across different levels of the independent variable.

If you were conducting an experiment examining the impact of sleep deprivation on physical ability, which of the following would be an appropriate operational definition of sleep deprivation?

Some recent research has revealed that arguing with your spouse before a big event results in less satisfaction and enjoyment at the respective event. In this experiment, which variable must have occurred first in order to ensure temporal precedence?

The most basic way to establish cause and effect is with a(n):

In designing an experimental study, the research question is to the experimental hypothesis as:

_____ is a means of evaluating the practical significance of a given statistical result between two groups.

(Scenario I) In this study, researchers identified a relationship between group therapy and improvement in self-awareness. They were able to conclude that participating in group therapy causes self-awareness to improve because of:

If you were interested in empirically testing whether the saying, "More money, more problems" is true, which variable would you expect to see change first in order to establish temporal precedence?

Assume you are studying the effect of retinal light exposure on the human blinking response. In designing this study, you need to identify the experimental variable being manipulated. Which is likely the experimental variable being manipulated in this study?

Dante is investigating whether smoking affects mental clarity. Which of the following participants would be an appropriate matched-pair for an individual who is a regular smoker?

An independent samples t-test that fails to reach statistical consequence indicates that:

In a _____ design, the researcher creates a set of two participants who are highly similar on a key trait and then randomly assigns these individuals to different groups.

Dr. Nash is examining whether various cultural groups implement more authoritarian parenting styles in the discipline of their children than other parenting styles. In an effort to answer this research question, Dr. Nash utilizes a stratified random sample of parents from four different cultural groups and asks these parents to complete a self-report measure on their parenting style. Some groups will be randomly selected to view a video regarding appropriate discipline practices and other groups will just be asked to complete the surveys. In this study, _____ would be considered the independent variable and _____ would be identified as the dependent variable.