Psychology - Experimental Research Methods Quiz

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  • 1/14 Questions

    The dependent variable is:

    • The variable the researcher measures.
    • The variable the researcher manipultates.
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About This Quiz

This quiz covers key aspects of experimental research methods in psychology, focusing on laboratory and field experiments, hypothesis formulation, and the significance of double-blind procedures. It assesses understanding of research design and variable manipulation.

Psychology - Experimental Research Methods Quiz - Quiz

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  • 2. 

    Whats a Laboratory Experiment?

    • The IV studied is naturally occuring and the researcher cannot conrtol it.

    • The researcher deliberately manipulates the IV, measure the DV and maintains strict control over all other variables.

    • Carried out in a natural enviroment, participants dont know they are being tested. The IV is still manipulated and the DV still measured.

    Correct Answer
    A. The researcher deliberately manipulates the IV, measure the DV and maintains strict control over all other variables.
    Explanation
    This answer correctly identifies a laboratory experiment as a research method in which the researcher deliberately manipulates the independent variable (IV), measures the dependent variable (DV), and maintains strict control over all other variables. This explanation also highlights the key features of a laboratory experiment, such as the controlled environment and the researcher's ability to manipulate and measure variables.

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  • 3. 

    The independent variable is:

    • The variable the researcher measures.

    • The variable the researcher manipultates.

    Correct Answer
    A. The variable the researcher manipultates.
    Explanation
    The independent variable is the variable that the researcher manipulates. This means that the researcher has control over this variable and can change its value or condition in order to observe its effect on the dependent variable. By manipulating the independent variable, the researcher can determine whether there is a causal relationship between the independent variable and the dependent variable. The dependent variable, on the other hand, is the variable that is measured or observed by the researcher. It is the outcome or response that may be influenced by the independent variable.

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  • 4. 

    Which of these is a Null hypothesis?

    • There will be no significant difference in a persons height due to the number of jelly beans eaten.

    • Those who eat more jelly beans will be more likely to grow taller then those who eat less jelly beans.

    Correct Answer
    A. There will be no significant difference in a persons height due to the number of jelly beans eaten.
    Explanation
    The null hypothesis is a statement that assumes no significant difference or relationship between variables. In this case, the null hypothesis states that there will be no significant difference in a person's height due to the number of jelly beans eaten. This means that the number of jelly beans consumed will not have an impact on a person's height.

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  • 5. 

    Repeated measures is when:

    • Participants only sit one condition of the research.

    • Participants sit half the conditions of the research then another participant does the other half.

    • Participants sit all conditons of the research.

    Correct Answer
    A. Participants sit all conditons of the research.
    Explanation
    Repeated measures is a research design where participants experience all conditions of the study. This means that each participant is exposed to every level or treatment being investigated. By doing so, researchers can compare the effects within the same individuals, eliminating individual differences as a confounding factor. This design is particularly useful when the sample size is limited or when individual differences need to be controlled for. It allows for increased statistical power and efficiency in data collection.

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  • 6. 

    Confounding Variables are:

    • The variable the researcher measures.

    • Things that can effect the behaviour of the participants.

    • The variable the researcher manipultates.

    • Things that can mess up the expeimenter's atempts to interpret findings.

    Correct Answer
    A. Things that can mess up the expeimenter's atempts to interpret findings.
    Explanation
    Confounding variables refer to factors that can interfere with the experimenter's ability to interpret the findings accurately. These variables are external factors that are not controlled or accounted for in the study but can influence the results. They can introduce bias and lead to incorrect conclusions. By not considering or accounting for these variables, the experimenter's attempts to interpret the findings may be compromised, making it difficult to determine the true cause-and-effect relationship between the variables being studied.

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  • 7. 

    After we write down a null hypothesis we must write:

    • Any difference will be due to researcher mistakes.

    • Any difference will be due to the research methods.

    • Any difference will be due to chance.

    Correct Answer
    A. Any difference will be due to chance.
    Explanation
    After writing down a null hypothesis, the statement "Any difference will be due to chance" is the correct answer. This is because the null hypothesis assumes that there is no significant difference or relationship between variables, and any observed difference is purely due to chance or random variation. It suggests that any variation or deviation from the null hypothesis is not a result of systematic errors or research methods, but rather a result of random chance.

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  • 8. 

    Which is a one tailed hypothesis?

    • Drinking alcohol will effect reaction time.

    • Drinking alcohol will slow down your reaction time.

    Correct Answer
    A. Drinking alcohol will slow down your reaction time.
    Explanation
    The given answer "Drinking alcohol will slow down your reaction time" is a one-tailed hypothesis because it specifies the direction of the effect. It suggests that drinking alcohol will have a specific impact on reaction time, which is slowing it down. A one-tailed hypothesis focuses on a specific direction of the effect, while a two-tailed hypothesis would simply state that drinking alcohol will have an effect on reaction time without specifying the direction.

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  • 9. 

    Independent measures is when:

    • Participants only sit one condition of the research.

    • Participants sit all conditons of the research.

    • Participants sit half the conditions of the research then another participant does the other half.

    Correct Answer
    A. Participants only sit one condition of the research.
    Explanation
    Independent measures design refers to a research design where participants are assigned to only one condition of the study. This means that each participant experiences only one level of the independent variable, and their responses are compared with those of participants in other conditions. In this design, different groups of participants are used for each condition, allowing for a comparison between groups rather than within the same individuals. This design is commonly used to avoid order effects and reduce participant fatigue or practice effects.

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  • 10. 

    Extraneous variables are:

    • The variable the researcher measures.

    • Things that can effect the behaviour of the participants.

    • The variable the researcher manipultates.

    • Things that can mess up the expeimenter's atempts to interpret findings.

    Correct Answer
    A. Things that can effect the behaviour of the participants.
    Explanation
    Extraneous variables refer to factors or variables that are not intentionally manipulated or measured by the researcher but can still influence the behavior of the participants in a study. These variables can have an unintended impact on the outcome of the study and can potentially confound or distort the interpretation of the findings. Therefore, they are considered as things that can affect the behavior of the participants in a research study.

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  • 11. 

    Matched pairs is when:

    • Participants are matched as closley as possible to another particpant then they both do all the conditions and the results are compared.

    • Participants sit half the conditions of the research then another participant does the other half.

    • Participants from the first condition are matched as closley as possible from participants from the second condition.

    Correct Answer
    A. Participants from the first condition are matched as closley as possible from participants from the second condition.
    Explanation
    Matched pairs is a research design where participants from the first condition are matched as closely as possible with participants from the second condition. This ensures that the two groups are similar in terms of relevant characteristics, such as age, gender, or previous experience. By doing so, any differences in the outcomes can be attributed to the independent variable being studied rather than individual differences between participants. This design helps to control for extraneous variables and increases the internal validity of the study.

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  • 12. 

    Which of the following is NOT a key advantage of using a double-blind procedure in experimental research?

    • Minimizes experimenter bias 

    • Reduces participant bias 

    • Increases the complexity of the study 

    • Enhances the validity of the results

    Correct Answer
    A. Increases the complexity of the study 
    Explanation
    While a double-blind procedure adds a layer of organization, it's primary benefit is reducing bias, not increasing complexity. By keeping both researchers and participants unaware of treatment conditions, it minimizes the potential for biases to influence the outcome, leading to more reliable and objective results.

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  • 13. 

    What's a Field Experiment?

    • An experiment carried out in a laboratory setting with controlled conditions.

    • A research method is conducted in a natural environment, where the researcher manipulates the independent variable.

    • A study where participants are aware they are being tested, and the researcher measures the dependent variable.

    • An observational study that takes place in a controlled laboratory environment.

    Correct Answer
    A. A research method is conducted in a natural environment, where the researcher manipulates the independent variable.
    Explanation
    A field experiment is a research method conducted in a real-world setting, where the researcher deliberately manipulates an independent variable (IV) to study its effects. The dependent variable (DV) is measured to assess how changes in the IV impact the real-world context. While the researcher aims to control other variables to some extent, field experiments prioritize studying behavior and phenomena in natural environments, offering a balance between laboratory experiments and naturalistic observations.

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  • 14. 

    A ________ hypothesis is a statement of __________.

    Correct Answer
    Research, prediction
    Explanation
    A research hypothesis is a statement that is formulated based on research and aims to predict the relationship or outcome between variables being studied. It is a tentative assumption or proposition that is tested through research methods and data analysis. The purpose of a research hypothesis is to guide the research process and provide a clear direction for the study. It helps researchers to focus on specific objectives and determine if their predictions are supported by the evidence gathered during the research.

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  • Current Version
  • Dec 05, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Oct 09, 2011
    Quiz Created by
    HAT11115044
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