Research Methods Chapter 2 R eview Research Methods

  • Slides: 14
Download presentation
Research Methods Chapter 2 R eview

Research Methods Chapter 2 R eview

Research Methods: Design an Experiment Design an experiment that tests the hypothesis, “Cooperative learning

Research Methods: Design an Experiment Design an experiment that tests the hypothesis, “Cooperative learning is more effective in raising test scores than direct teacher instruction. ” Use the following terms in your response: § Independent and dependent variables § Random sampling and assignment § Experimental and control grouping § Ethical considerations § An interpretation of what statistically significant results would mean for this experiment

Research Methods: Identify the Flaws Dr. Myers wants to explore how cooperative learning is

Research Methods: Identify the Flaws Dr. Myers wants to explore how cooperative learning is more effective in raising test scores than direct teacher instruction. He approaches the principal of a local school and asks if he can conduct his research on the teachers and students. The principal agrees and gives Dr. Myers the names of several teachers who would be most willing to work with him. Dr. Myers interviews the teachers and chooses 2 that he feels would best represent different types of teachers and diverse students in the United States. One teacher is new to the school and teaches freshman English. The other has been teaching for 23 years and teaches senior AP Psychology. Dr. Myers gives the new teacher the cooperative learning group, and the veteran teacher the direct instruction group. Each teacher is videotaped during their research lessons, and Dr. Myers’s students watch the videos to determine if the teachers conducted the lessons according to Dr. Myers’ instructions. At the end of the semester, Dr. Myers gathers the students’ test scores for each class. He looks over the test scores and decides to study only those students who sat in the first two rows of each class, since after he watched the videotaped observations they seemed to paying the most attention to the lessons in each class. He gets their parents to agree to let him analyze the data. Identify at least two problems with Dr. Myers’ study from each of the following areas: 0 Random sampling procedures 0 Random assignment procedures 0 Experimenter (researcher) bias 0 Ethical issues

Review Questions 1. Organized sets of concepts that explain phenomena are a) b) c)

Review Questions 1. Organized sets of concepts that explain phenomena are a) b) c) d) e) Independent variables Dependent variables Hypothesis Theories Statistics

Review Questions 2. Of the following, which research method is most effective for studying

Review Questions 2. Of the following, which research method is most effective for studying unusually complex or rare phenomena? a) b) c) d) e) Controlled experiment Quasi- experiment Test Survey Case study

Review Questions 3. Of the following, which research method would be most appropriate for

Review Questions 3. Of the following, which research method would be most appropriate for investigating the relationship and attitude toward the death penalty? a) b) c) d) e) Controlled experiment Quasi- experiment Test Survey Case study

Review Questions 4. Of the following, the strongest positive correlation would most likely be

Review Questions 4. Of the following, the strongest positive correlation would most likely be shown between a) b) c) d) e) An adults weight and running speed Close friendships and happiness Sense of humor and years of education Poverty and good health Visual acuity and salary

Review Questions 5. Of the following, which can establish a cause and effect relationship?

Review Questions 5. Of the following, which can establish a cause and effect relationship? I. Controlled experiment II. Quasi-experiment III. Correlational research a) b) c) d) e) I only I and III only I, II, and III

Review Questions 6. The essence of the experimental method is a) accurate calculation of

Review Questions 6. The essence of the experimental method is a) accurate calculation of correlations b) obtaining direct reports from subjects about their subjective experiences. c) careful measurement and record keeping d) using control to identify cause and effect connections

Review Questions 7. In the simplest experiment, the two groups of subjects are treated

Review Questions 7. In the simplest experiment, the two groups of subjects are treated exactly alike except for the _____ variable. a) b) c) d) independent extraneous control

Review Questions 8. The conditions that a researcher wishes to prevent from affecting the

Review Questions 8. The conditions that a researcher wishes to prevent from affecting the experiment are called a) b) c) d) constants dependent variables extraneous variables independent variables

Review Questions 9. A researcher wants to determine the effect of sleep deprivation on

Review Questions 9. A researcher wants to determine the effect of sleep deprivation on human problem solving. Subjects in an appropriate control group for such an experiment would be described as having a) b) c) d) Much more sleep than normal. Much less sleep than normal A normal amount of sleep The same amount of sleep as the experimental group

Review Questions 10. One of the limitations of the survey method is a) b)

Review Questions 10. One of the limitations of the survey method is a) b) c) d) observer bias that it sets up an artificial situation that replies may not be accurate the self-fulfilling prophecy

Answers 1. D 2. E 3. D 4. B 5. A 6. D 7.

Answers 1. D 2. E 3. D 4. B 5. A 6. D 7. A 8. C 9. C 10. C