Exam 6: Eliminating Rival Plausible Explanations: the Experiment

Summarize and distinguish between the four threats to internal validity.

______ refers to the generalizability of results to other person's.

Identify the key differences between internal and external validity and discuss how to achieve internal and external validity.

Jamie has been selected for a research study that involves a mock trial, prior to the actual study she takes a pretest about her familiarity with the court process. Afterward, she watches several shows about the law and reads articles about the role of the jury. What threat to internal validity might this cause?

All experiments must include the situation or intervention that does not need to exist in the real world.

The ______ variable is the variable whose impact we are trying to assess, and the ______ variable is the variable we measure in order to see whether any effect has occurred.

______ occurs when two (or more) groups are equal or similar on average prior to the introduction of the independent variable.

Which of the following is NOT one of the three criteria you need to meet before we can say an event or person caused an effect?

In terms of internal validity in pretest/posttest designs, history refers to which of the following?

Compare and contrast external validity and ecological validity.

The ______ process intentionally creates equivalence.

Propose a research study and include information regarding the following study elements: a. name the independent variable in this study b. name the dependent variable in this study c. Wwhat does it mean to say that the differences between groups are statistically significant? d. evaluate the study's internal validity, identify what threat(s) to internal validity you believe might be present, and state how you might safeguard the study to control for those threats. e. show that you understand the concept of external validity by identifying potential external validity concerns in this study f. evaluate the study's ecological validity

The degree of verisimilitude (i.e., lifelikeness) of the research to the events and characteristics of real life is relevant to which type of validity.

Cultural context is not necessary when interpreting meaning because human behavior occurs outside of cultural influence.

This variable whose impact we are trying to assess is known as the dependent variable.

Selena is conducting a research study to see whether the use of Cornell notes increases exam scores in a research methods course. In this scenario Cornell notes are the ______.

The ______ group is treated identically to the ______ group in all respects except the ______ group doesn't receive the independent variable.

Brittany is conducting a study in an elementary school. In the morning she collects data about how they feel about their teacher, she asks similar questions right before lunch and receives more negative responses. What threat to internal validity should she consider as a possible reason for this change?