Psychology - Experimental Research Methods Quiz

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Psychology - Experimental Research Methods Quiz - Quiz


Questions and Answers
  • 1. 

    Whats a Laboratory Experiment?

    • A. 

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

    • B. 

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

    • C. 

      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
    B. 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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  • 2. 

    Which is a one tailed hypothesis?

    • A. 

      Drinking alcohol will effect reaction time.

    • B. 

      Drinking alcohol will slow down your reaction time.

    Correct Answer
    B. 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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  • 3. 

    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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  • 4. 

    Which of these is a Null hypothesis?

    • A. 

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

    • B. 

      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. 

    Whats a Field Experiment?

    • A. 

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

    • B. 

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

    • C. 

      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
    B. The researcher deliberately manipulates the IV, measure the DV and maintains strict control over all other variables.
    Explanation
    A field experiment is a research method where the researcher intentionally manipulates the independent variable (IV), measures the dependent variable (DV), and maintains strict control over all other variables. This type of experiment is conducted in a natural environment, typically without the participants' knowledge that they are being tested. The purpose of a field experiment is to study the effects of the manipulated IV on the DV while minimizing the influence of extraneous variables.

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  • 6. 

    Whats a Quasi Experiment?

    • A. 

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

    • B. 

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

    • C. 

      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
    B. The researcher deliberately manipulates the IV, measure the DV and maintains strict control over all other variables.
    Explanation
    A quasi-experiment is a research design where the researcher deliberately manipulates the independent variable (IV), measures the dependent variable (DV), and maintains strict control over all other variables. Unlike a true experiment, the IV in a quasi-experiment is naturally occurring and cannot be controlled by the researcher. Quasi-experiments are often conducted in a natural environment, where participants are unaware that they are being tested. Despite the lack of full control over the IV, the researcher still manipulates it and measures the DV while controlling for other variables.

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  • 7. 

    After we write down a null hypothesis we must write:

    • A. 

      Any difference will be due to researcher mistakes.

    • B. 

      Any difference will be due to the research methods.

    • C. 

      Any difference will be due to chance.

    Correct Answer
    C. 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. 

    The independent variable is:

    • A. 

      The variable the researcher measures.

    • B. 

      The variable the researcher manipultates.

    Correct Answer
    B. 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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  • 9. 

    The dependent variable is:

    • A. 

      The variable the researcher measures.

    • B. 

      The variable the researcher manipultates.

    Correct Answer
    A. The variable the researcher measures.
    Explanation
    The dependent variable refers to the variable that the researcher measures in a study. It is the outcome or response variable that is being observed or recorded. In contrast, the independent variable is the variable that the researcher manipulates or controls in order to understand its effect on the dependent variable. In this case, the correct answer is "The variable the researcher measures" because the dependent variable is the one that is being measured and observed in the study.

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  • 10. 

    Extraneous variables are:

    • A. 

      The variable the researcher measures.

    • B. 

      Things that can effect the behaviour of the participants.

    • C. 

      The variable the researcher manipultates.

    • D. 

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

    Correct Answer
    B. 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. 

    Confounding Variables are:

    • A. 

      The variable the researcher measures.

    • B. 

      Things that can effect the behaviour of the participants.

    • C. 

      The variable the researcher manipultates.

    • D. 

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

    Correct Answer
    D. 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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  • 12. 

    Independent measures is when:

    • A. 

      Participants only sit one condition of the research.

    • B. 

      Participants sit all conditons of the research.

    • C. 

      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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  • 13. 

    Repeated measures is when:

    • A. 

      Participants only sit one condition of the research.

    • B. 

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

    • C. 

      Participants sit all conditons of the research.

    Correct Answer
    C. 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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  • 14. 

    Matched pairs is when:

    • A. 

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

    • B. 

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

    • C. 

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

    Correct Answer
    C. 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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