Which of the following is defined as a threat to internal validity that occurs with a normal physical or mental change in a subject
Answer: Maturation Feedback: Maturation is a threat to internal validity because if the outcome variable is affected by both naturally occurring physical and mental changes and a treatment the researcher would not be able to determine which had the most effect.
Which of the following pattern of results would suggest that there is a threat to internal validity
Which of the following pattern of results would suggest that there is a threat to internal validity? The final exam scores were equally low in both groups. Which of the following things CANNOT be done to reduce the effect of individual differences?
When a double blind study is not possible quizlet
when a double blind study is not possible. in some studies, participants know which group they are in but the observers do not. occurs when people receive a treatment and really improve- but only because the recipients believe they are receiving a valid treatment.
Why do studies that use probability samples have excellent external validity
Why do studies that use probability samples have excellent external validity? All members of the population are equally likely to be represented in the sample.
Which research strategy is least concerned with examining relationships between variables
Which research strategy is not concerned with examining relationships between variables? The correct answer is C, descriptive. As the values for one variable decrease from one person to another, the values for a second variable also tend to decrease.
When generalizing the results of a sample to a population which of the following is the most important question to ask
When generalizing the results of a sample to a population, which of the following is the most important question to ask? How were the participants sampled? Two or more independent variables each having two or more levels.
Which of the following is an advantage of studies that are conducted in real-world settings
Which of the following is an advantage of studies that are conducted in real-world settings? They are high in ecological validity.
Which of the following could be said of the focus of activity variable in Dr Elders study
Elder's study? Which of the following could be said of the focus of activity variable in Dr. Elder's study? A proper statistical test would be necessary to determine the effect of the focus of activity variable.
Which of the following threatens the internal validity of an experiment quizlet
Experimenter bias is a type of artifact and threatens the validity of the measurement, as well as both internal and external validity. The extent to which we can generalize the results of a research study to people, settings, times, measures, and characteristics other than those used in that study.
What are the 4 threats to internal validity
History, maturation, selection, mortality and interaction of selection and the experimental variable are all threats to the internal validity of this design.
Which of these is a threat to validity in a one group pretest posttest design
Another threat to the internal validity of one-group pretest-posttest designs is testing which refers to when the act of measuring the dependent variable during the pretest affects participants' responses at posttest.
What are the threats to internal validity quizlet
Threats to internal validity
- History threat.
- Maturation threat.
- Testing threat.
- Instrumentation threat.
- Mortality threat.
- Regression threat.
- Selection threat.
- Social interaction threat.
What is internal validity in a research study
Internal validity is defined as the extent to which the observed results represent the truth in the population we are studying and, thus, are not due to methodological errors.
What are the types of internal validity
The 4 Types of Validity | Explained with Easy Examples
- Construct validity: Does the test measure the concept that it's intended to measure?
- Content validity: Is the test fully representative of what it aims to measure?
- Face validity: Does the content of the test appear to be suitable to its aims?
What is internal validity quizlet
Internal validity. The degree to which observed differences on the dependent variable are directly related to the independent variable, not to some other unintended variable.
Which of the following could not be said of the focus of activity variable in Dr Elders study
Which of the following could NOT be said of the focus of activity variable in Dr. Elder's study? The focus of activity finding is not as important as the type of activity finding.
What are threats in doing research
Lack of funding or no funding, distractions from routine administrative and examination duties, excessive teaching loads and excessive use of social networking sites are the common distractions and biggest threats to research productivity. lack of funding, no collaborators and time management.
How can threats to internal validity be reduced
8: Minimizing Threats to Internal Validity
- 1: Generating Evidence Through Intervention Research Versus Using Evidence in Evidence-Based Practice/Quality Improvement Free.
- 2: Setting the Stage for Intervention Research and Evidence-Based Quality Improvement: The “So What,” “What Exists,” and “What's Next” Factors.