Which research method is typically used to examine one participant in depth, usually because the individual's situation/behavior is rare or unusual?

During the last Central High School basketball game, the starting five players scored 11, 7, 21, 14, and 7 points, respectively. For this distribution of scores, the range is

The King James Version of the Bible was completed when William Shakespeare was 46 years old. In Psalm 46 of this translation, the forty-sixth word is “shake,” and the forty-sixth word from the end is “spear.” Before concluding that the biblical translators were trying to be humorous with these specific word placements, you would be best advised to recognize the danger of

A case study is a valuable research method because it can allow for an in-depth study of a particular person or group that might be fascinating. However, case studies have drawbacks. What is the biggest drawback of using a case study as a research method?

To graphically represent the correlation between two variables, researchers often construct a

What is the research term that determines whether the results of a study are not due to chance?

A majority of respondents in a national survey agreed that “classroom prayer should not be allowed in public schools.” Only 33 percent of respondents in a similar survey agreed that “classroom prayer in public schools should be banned.” These divergent findings best illustrate the importance of

Participants in an experiment are said to be blind if they are uninformed about

According to Professor Alrahami, we like people who like us because their affection for us boosts our own self-esteem as one part of a larger work on attraction. His idea is an example of

Knowing the difference between an experimental condition and a control condition is most relevant to understanding the nature of

During the past year, Zara and Ivan each read 2 books, but George read 9, Ali read 12, and Marsha read 25. The median number of books read by these individuals was

An extensive survey revealed that children with relatively high self-esteem tend to picture God as kind and loving, whereas those with lower self-esteem tend to perceive God as angry. The researchers concluded that the children's self-esteem had apparently influenced their views of God. This conclusion best illustrates the danger of

During the past month, Henri and Sylvia each ate 10 candy bars, while Jerry ate 8, Tricia ate 6, and Tahli ate only 1. The mean number of candy bars eaten by these individuals was

In 1848, Phineas Gage, a railroad construction foreman, survived when an explosion drove an iron rod through his head damaging the functioning of the frontal lobes. This instance provided evidence that the frontal lobe plays a role in personality and behavior. Researchers have continued to study Gage's brain to better understand this link. Which research method is being used?

A researcher who publishes the results of a case study might be most worried about violating which ethical principle of human experimentation?

Coach Thornton attended a clinic to improve her basketball coaching skills. Afterward, she randomly assigned her seventh-grade players to two groups: Group 1 will be coached by the new method and Group 2 will be coached by the old method. She then measured their performance at one team practice to judge the effectiveness of the new coaching method. Which of the following might affect the statistical significance of his study?

Professor Trinh contends that parents and children have similar levels of intelligence largely because they share common genes. His idea is best described as a(n)

Which of the following is true for those assigned to a control group?

Six different high school students spent $$10,$$ 13, $$2,$$ 12, $$13, and$$ 4, respectively, on entertainment. The mode of this group's entertainment expenditures is

Why are researchers so careful about drawing conclusions regarding statistical significance?

Which of the following correlation coefficients expresses the weakest degree of relationship between two variables?

A smaller survey attempts to make generalizations to a larger group. That group is called

Mr. and Mrs. Klostreich have six children aged 5, 6, 6, 7, 8, and 16. The mean age of the Klostreich children is

The range is

To provide a baseline against which they can evaluate the effects of a specific treatment, experimenters make use of a(n)

The biggest danger of relying on case-study evidence is that it

Our tendency to believe we know more than we do illustrates

If psychologists discovered that wealthy people are less satisfied with their marriages than poor people are, this would indicate that wealth and marital satisfaction are

Which of the following is the best definition of illusory correlation?

Researchers are interested in studying the impact of drugs on human fetuses. In this case, why would a correlational study be more appropriate than an experiment?

To accurately infer cause and effect, experimenters should use

Why is the scale of the range of the y-axis in a histogram important to consider?

Which procedure helps to ensure that the participants in a survey are representative of a larger population?

Which of the following is true for those assigned to the experimental group in an experiment?

For which of the following distributions of scores would the median most clearly be a more appropriate measure of central tendency than the mean?

Psychologists' personal values and goals

Because she had a serious traffic accident on Friday the 13th of last month, Felicia is convinced that all Friday the 13ths will bring bad luck. Felicia's belief best illustrates

Professional psychological associations require researchers to

In a drug treatment study, participants given a pill containing no actual drug are receiving a(n)

When we see certain outcomes as obvious based on what has occurred, we may be experiencing

A specification of how a researcher measures a research variable is known as a(n)

Which of the following correlations between annual income and education level would best enable you to predict annual income on the basis of level of education?

In the hypothesis “Students who study a list of terms in the morning, just after waking up, will recall more terms than students who study the list just before falling asleep,” what is the dependent variable?

Professor Smith told one class that alcohol consumption has been found to increase sexual desire. He informed another class that alcohol consumption has been found to reduce sexual appetite. The fact that neither class was surprised by the information they received best illustrates the power of

Which technique most clearly minimizes the likelihood that any outcome differences between the experimental and control conditions can be attributed to age or personality differences in research participants?

The arithmetic average of a distribution of scores is the

In a group of five individuals, two report annual incomes of $$10,000, and the other three report incomes of$$ 14,000, $$15,000, and$$ 31,000, respectively. The mode of this group's distribution of annual incomes is

What does inferential statistics aim to do?

Which two questions exemplify the scientific attitude?

Which of the following defines ethical principles that should guide human experimentation?

To understand the unusual behavior of an adult client, a clinical psychologist carefully investigates the client's current life situation and his physical, social-cultural, and educational history. Which research method has the psychologist used?

What is a type of bar chart graph that shows the distribution of data?

Dr. Wescott hypothesized that students in a classroom seating 30 would get higher course grades than students seated in an auditorium seating 300. In this example,

A correlation coefficient is a measure of the

To assess reactions to a proposed tuition hike at her college, Ariana sent a questionnaire to every fifteenth person in the college registrar's alphabetical listing of all currently enrolled students. Ariana employed the technique of

Professor Raza suggests that because people are especially attracted to those who are good-looking, handsome men will be more successful than average-looking men in getting a job. The professor's prediction regarding employment success is an example of

Dr. DeVries is interested in measuring how practice in problem solving affects this ability. The population of interest is high school seniors, and the sample consists of students who attend an exclusive college preparatory school. Half of the sample receives practice in solving particular types of problems, while the other half does not. Both groups take the same problem-solving test. Which of the following might best explain why Dr. DeVries may not be able to generalize his findings?

The difference between the highest and lowest scores in a distribution is the

Which of the following correlations between self-esteem and body weight would enable you to most accurately predict body weight from knowledge of level of self-esteem?

When the observed difference between the means of an experimental group and a control group are not likely due to chance, researchers conclude that this difference is

Which of the following statistical measures is most helpful for indicating the extent to which high school grades predict college grades?

An experiment was designed to study the potential impact of alcohol consumption on emotional stability. A specification of the procedures used to measure emotional stability illustrates

In a distribution of test scores, which measure of central tendency would likely be the most affected by a couple of extremely high scores?

George was worried about his bakery's new cupcakes after two customers disliked them on the first day, but when he surveyed his customers over the next week, more than 90% of the customers said they loved them. By giving too much weight to those two customers before the survey, George almost committed an error known as

What technique do researchers use to reduce the impact of confounding variables?

The sequential occurrence of two highly unusual events is most likely to contribute to

In an experiment designed to study the effectiveness of a new drug, research participants who receive a placebo are participating in the ________ condition.

In a test of the effects of sleep deprivation on problem-solving skills, research participants are allowed to sleep either 4 or 8 hours on each of three consecutive nights. This research is an example of

What is the one research method that might be able to prove a cause-and-effect relationship between two variables?

Which research method would be most appropriate for investigating the relationship between the religious beliefs of Americans and their attitudes toward abortion?

Thinking that she had outperformed most of her classmates, Glenda was surprised to receive just an average grade on her psychology test. Glenda's experience best illustrates

Researchers use experiments rather than other research methods in order to distinguish between

Why are researchers concerned with statistical significance?

Which of the following correlation coefficients expresses the strongest degree of relationship between two variables?

Professor Shimabukuro carefully observes and records the behaviors of children in their classrooms in order to track the development of their social and intellectual skills. Professor Shimabukuro is most clearly engaged in

If college graduates typically earn more money than high school graduates, this would indicate that level of education and income are

A soft drink company recently invested in a new advertising campaign to increase sales. Which of the following would allow executives to best judge the results of their latest commercials?

After noting that a majority of professional basketball players are African-American, Ervin concluded that African-Americans are better athletes than members of other racial groups. Ervin's conclusion best illustrates the danger of

Why are researchers careful to use large, representative samples in their studies?

Which technique involves repeating the essence of an earlier research study with different participants and in different circumstances?

According to Emily's grandfather, Adolf Hitler's obvious emotional instability made it clear from the beginning days of his international conflict that Germany would inevitably lose World War II. The grandfather's claim best illustrates

In a study of the effects of alcohol consumption, some participants drank a nonalcoholic beverage that actually smelled and tasted like alcohol. This nonalcoholic drink was a

Seven members of a boys' club reported the following individual earnings from their sale of cookies: $$2,$$ 9, $$8,$$ 10, $$4,$$ 9, and $7. In this distribution of individual earnings

Redelmeier and Tversky (1996) followed 18 patients with arthritis for 18 months. Patients were asked to record their pain and joint tenderness, while researchers documented changes in the weather. Nearly all patients believed that their condition was associated with weather changes, when the actual correlation was near zero. These participants need to be reminded that

The hindsight bias leads people to perceive research findings as

On a 10-item test, three students in Professor Hsin's advanced chemistry seminar received scores of 2, 5, and 8, respectively. For this distribution of test scores, the standard deviation is equal to the square root of

The most commonly reported measure of central tendency is the

To determine whether a research finding is statistically significant, researchers

In 1953, H.M. underwent surgery to control his seizures. Doctors removed tissue from the hippocampus. As a result, H.M.'s memory was severely impaired. Psychologists studied H.M.'s memory function until his death in 2008. Which research method did the psychologists utilize in this situation?

To assess the effect of televised violence on aggression, researchers plan to expose one group of children to violent movie scenes and another group to nonviolent scenes. To reduce the chance that the children in one group have more aggressive personalities than those in the other group, the researchers should make use of

Hindsight bias, overconfidence, and our tendency to perceive patterns in random events push us to overvalue

Psychologists who carefully watch the behavior of chimpanzee societies in the jungle are using a research method known as

Which measure of central tendency would a baseball manager be most likely to rely on in picking a pinch hitter in a tie game?

Dr. Donelian wants to reduce his students' perception that psychological experiments merely document the obvious. His best strategy would be to ask the students to

The explanatory power of a scientific theory is most closely linked to its capacity to generate testable

For which of the following distributions of scores would the median most clearly be a more appropriate measure of central tendency than the mean?

Professor Teruya noticed that the distribution of students' scores on her last biology test had an extremely small standard deviation. This indicates that the

What is the primary limitation of the case study research method?