Question 1

Dr. Bassuk is conducting a pilot study for his newest research project. During this pilot study, he has the participants verbalize their thoughts as they perform the experiment. This technique is called the

Accepted Answer

The think-aloud technique involves participants verbalizing their thoughts as they perform tasks or experiments, allowing researchers to gain insights into the cognitive processes behind the participants' actions.

Question 2

Because researchers are generally more concerned with establishing internal validity rather than external validity, they are typically more concerned with ______and less concerned with ________.

Accepted Answer

Random assignment is crucial for establishing internal validity by ensuring that each participant has an equal chance of being assigned to any group in the experiment, thus controlling for confounding variables. Random selection is more about external validity, or the extent to which results can be generalized to a broader population.

Question 3

What is the common purpose of using the double blinding and deception techniques?

Accepted Answer

The purpose of using double blinding and deception techniques is to keep participants' perceptions of the experiment constant across different conditions of the experiment. This is done by keeping participants unaware of which condition they are in and by using deception to create a more realistic experience.

Question 4

If a researcher is worried about experimenter bias during the interaction between experimenter and participant, _________could totally control for this bias by removing the experimenter from interaction with the participant completely.

Accepted Answer

Automation can control for experimenter bias by removing the experimenter from the interaction with the participant completely, thus eliminating any potential influence the experimenter might have on the participant's responses or behavior.

Question 5

What is the purpose of "blinding" the experimenter to the conditions) his or her participants are experiencing?

Accepted Answer

Blinding the experimenter prevents them from unintentionally influencing participants or interpreting results based on their expectations, ensuring unbiased behavior and data collection.

Question 6

One way in which experimenter expectancy effects can be manifested is in errors in recording data. What is the best way to control this?

Accepted Answer

Automating data collection as much as possible minimizes human error and bias, including experimenter expectancy effects, by reducing the direct involvement of researchers in the measurement process.

Question 7

Participants volunteered to be in a study of the effects of vitamin supplements. The experimenter was given an unlabeled syringe containing saline or a vitamin supplement to inject into the participant. The participants were not told if the injection they received is the vitamin supplement or a placebo. This experiment is using an) ______technique.

Accepted Answer

This experiment is using a double-blind technique because neither the participants nor the experimenter knows who is receiving the vitamin supplement and who is receiving the placebo, preventing bias.

Question 8

The techniques for equating demand characteristics across conditions do not necessarily equate each participant's perceptions of how they can present themselves in the most positive manner. To assess this aspect of participants' perceptions one could use

Accepted Answer

Concurrent and retrospective verbal reports can help assess participants' perceptions by capturing their thoughts and feelings during and after the experiment, respectively.

Question 9

If it is not feasible to use a blind technique throughout the whole experiment, the alternative is the

Accepted Answer

The partial blind technique is used when it's not feasible to implement a blind technique throughout the entire experiment. This approach allows for some level of blinding, even if it cannot be maintained for all aspects of the study.

Question 10

Although the extent to which experimenter effects influence study outcomes is controversial, techniques have been developed to at least partially counteract these effects. Which of the following is the LEAST likely to be used?

Accepted Answer

Option B, using a random sample of experimenters, is the least likely method to counteract experimenter effects. The other options directly address reducing potential biases or influences an experimenter might have on the study outcomes by limiting their knowledge or involvement.

Question 11

Dr. Bassuk is conducting a pilot study for his newest research project. During this pilot study, he repeatedly stops the participants and interviews them. He asks them to report what they were thinking during each portion of the study. This group of participants in the pilot study can also be called a

Accepted Answer

The answer of Dr. Bassuk is conducting a pilot study...

Question 12

The only control technique that can account for both known and unknown sources of extraneous variation ise.g., within designs require fewer participants, offer better control, but also may demand too much participant time and offer clues to the researcher's hypothesis).

Accepted Answer

Random assignment is the only control technique listed that can account for both known and unknown sources of extraneous variation by ensuring that each participant has an equal chance of being assigned to any group in the study, thus balancing out these variations across the groups.

Question 13

Dr. French makes sure that she has multiple video cameras recording her observation room during data collection. She also has multiple research assistants review the video recordings after the data are collected. This is to control for

Accepted Answer

Dr. French uses multiple video cameras and has multiple research assistants review the recordings to ensure accuracy and reliability in the data collection process, thereby controlling for potential recording errors. This approach helps in minimizing mistakes or inconsistencies that could occur during the recording of observations.

Question 14

The omission of or alteration of the truth of information give to participants in a research study can be done to

Accepted Answer

The answer of The omission of or alteration of the...

Quiz 7: Control Techniques in Experimental Research