## PSYC 255 Quiz 7

## PSYC 255 Quiz 7 Liberty University

### Set 1

- In psychological research, you
__fail__to reject the null hypothesis when __________. - Which of the following statements is
__false__? - Alpha is __________.
- Kathryn has completed a study and rejected the null hypothesis when the null hypothesis was in fact true. Kathryn has made a __________.
- The __________ t-test is used to determine when a mean is significantly different from a constant.
- Which of the following is a type of inferential statistic?
- A Bonferroni Correction is used to limit the possibility of making a/an __________.
- Kathryn has completed a study and rejected the null hypothesis when it was false. Kathryn has made a _________.
- Kathryn has completed a study and failed to reject the null hypothesis when the null hypothesis was false. Kathryn has made a _________.
- Which of the following statements is true?
- __________ are easily influenced by extreme scores.
- When conducting research, psychologists test the __________ hypothesis.
- Which of the following is a
__correct__decision? - Michaela’s exam scores for General Psychology were as follows: 95, 85, 70, and 90. Calculate the mean for these scores.
- The __________ is the number in the middle of the data set.
- Passive deception is to _____________ as active deception is to _____________.
- Active deception is deception by _____________.
- Which of the following is a part of a special population that is given added protection by the IRB?
- The purpose of the APA Ethics Code is to _____________.
- Jorge is participating in a research study. He has been given a survey in which there is no identifying information collected. This is an example of the study being _____________.
- Sabrina participated in a psychology experiment that involved answering a number of arithmetic problems. During the experiment, she was informed that her answers were incorrect. After the experiment was completed, a research assistant explained the purposes of the experiment. He told Sabrina that she had answered all the items correctly, and then explained why the experiment required that she be told her answers were wrong. What does this stage of the research process represent?
- A _____________ is a participant in a study but is also part of the research team.
- According to APA, when conducting research on animals which organization should be consulted?
- At the conclusion of a study, psychologists immediately disclose all information about a study during the process known as _____________.
- Those serving as reviewers during the publication process should _____________.
- If inducement for participation in a research study occurs, the inducement must be _____________.
- Sam is a participant in a study. However, unlike other participants, he works for the researchers and has a set of directions he must follow during the study. Sam is known as a _____________.
- Smith has recently published two studies in different journals. Both studies are on the effects of eating disorders. However, although the titles of the studies are different, the data presented in each study is exactly the same. Dr. Smith has violated which part of the APA Ethics Code?
- Tommi believes that all research on animals should stop because they are no different from humans. Tommi is known as a(n) _____________.
- Jerry has spent the past several months collecting data for his study. However, he begins to realize his results are not coming out the way he planned. To fix this “problem,” Jerry begins inputting his data incorrectly. Jerry is in violation of which part of the APA Ethics Code?

### Other sets (combined)

- The general form of a regression equation is _____.
- Which of the following statements is true about eﬀect size?
- Which of the following is a measure of central tendency?
- A consumer analyst asks participants to rate the health benefits of two health drinks— EnerG and Supreme. EnerG is rated more nutritive with a mean of 5.5 than Supreme, which is found to have a mean of 4.3. The Type II error would be to conclude that EnerG is:
- After establishing that there is a reasonably high correlation between two variables, a researcher can utilize a regression equation to make predictions about the _____ variable from the _____ variable.
- The research hypothesis states that the:
- Statistically, significant results mean that the results are:
- Which of the following statements is true about bar graphs?
- Workers at an automobile repair shop report that half of the automobiles they repair have a resale value below $8000. In this example, which measure of central tendency does the $8000 represent?
- Variables with _____ scale levels exhibit minimal quantitative distinctions.
- Latifah measures the height of four‑ and five‑year‑ To her surprise, she finds no correlation between height and age. What is most likely responsible for this result?
- A desired probability of correctly rejecting the null hypothesis is the _____.
- In the original Mozart eﬀect study, researchers examined the eﬀect of exposure to classical music on spatial reasoning. In this case, exposure to classical music and spatial reasoning are examples of _____ variables.
- According to Rosenthal and Rosnow, when compared to nonvolunteers, volunteers tend to be:
- A researcher would employ structural equation modeling because:
- Using the Internet for research may lower the external validity of a study because users are more likely to share similar characteristics. In this case, volunteers of online surveys are likely to
- Which of the following is true of conceptual replications?
- The diﬀerence between an interval and a ratio scale is that a ratio scale _____, while an interval scale does not.
- Research on the results of laboratory and field experiments that examine the same variables suggests that:
- Inferential statistics _____.
- A _____ is a set of statistical procedures for combining the results from a number of studies in order to provide a general assessment of the relationship between variables.
- The null hypothesis is rejected whenever
- A Type I error is a decision to
- Inferential statistics allow us to arrive at conclusions about the _____ on the basis of _____ data.
- If Dean Johnson takes an aptitude test for a position with Engineers Incorporated, the criterion variable is Dean’s
- The likelihood of the occurrence of some event or outcome is referred to as
- Which statement is LEAST correct when graphing the relationship between variables?
- When a researcher _____ the probability of making a Type I error, she _____ the probability of making a Type II error.
- A criterion variable is generally analogous to a(n) ________ variable in the experimental method.
- A negative value of r means that – those who score high on one variable tend to score
- Which statement is LEAST correct regarding the correlation coefficient?
- A one tailed statistical test is used when
- Which statistical test would be most appropriate to examine the relationship between temperature and number of ice cream cones sold during the month of July?
- The range and the standard deviation are both
- Ratio scales
- Which one of the following is NOT one of the three basic ways of describing results discussed in your text?
- Which one of the following is NOT a measure of central tendency? – Meridian
- Results are generally said to be statistically significant when there is a ________ probability of the results occurring if the population means are actually equal.
- Rejecting the null hypothesis when it is true is called a ________ error, whereas not rejecting a false null hypothesis is called a ________ error.
- The measure of central tendency that reflects the most frequent score is the
- variance is the deviation of the group means from the grand mean.
- How does restricting the range of a variable affect the correlation coefficient?
- Dr. Afzal finds that students who work less than 10 hours a week have significantly higher test scores than students who work more than 10 hours a week. In order to determine the magnitude of the effect of work hours on test scores, he should calculate an estimate of the
- One way to assess whether pretesting creates a generalization problem is to:
- The “Mozart effect” provides an interesting example of the importance of
- When examining the strength of the relationship between study time and test score, the null hypothesis would suggest that the true population correlation is:
- Researchers studying the effectiveness of a diet on heart disease divided the study’s participants into two groups—those with Type A personalities and those with Type B personalities. Which scale of measurement characterizes these personality variables?