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A ________ research hypothesis specifies the outcome of an experiment.

For this question, you need to answer the following: What is the operational definition for the DV in the research scenario from the previous question? In other words, how will you record (measure) your DV? What type of DV operationalization is this?

A study with ________________ within-group variability will require ________________ participants.

In one study, half of the rats are given one food pellet each time they correctly run a maze, and the other half of the rats are given two food pellets each time they correctly run a maze. The researchers record the average amount of time it takes the rats to run the maze. In this study, the number of food pellets represents the __________ variable.

Research aimed at determining the universality of research results is known as _________ research.

A researcher conducts a study on the effectiveness of a new drug to alleviate anxiety. Participants are given either the drug or a sugar pill, and they don’t know which they are receiving. Furthermore, the experimenter dispensing the pills does not know which pill he is giving out. This experiment is known as a _________ experiment.

A variable always has

A ___________ error refers to finding an effect when there really is no effect while a __________ error refers to not finding an effect when there really is an effect

Which of the following is a common method for controlling experimenter effects on the participants? (Select all that apply)