7.1.1 Planning Experiments

    Cards (36)

    • A good hypothesis should be specific, testable, and measurable.

      True
    • Controlling control variables ensures the validity of the experiment.
    • A null hypothesis predicts that there is no relationship between variables.

      True
    • Match the variable type with its definition:
      Independent Variable ↔️ Manipulated by the researcher
      Dependent Variable ↔️ Measured as a result of the independent variable
      Control Variable ↔️ Kept constant to isolate the independent variable
    • The independent variable is manipulated or changed by the researcher
    • What are some common tools used for quantitative data collection?
      Rulers, stopwatches, scales
    • Match the characteristic of a research question with its example:
      Specific ↔️ How does fertilizer X affect sunflower plants?
      Measurable ↔️ Does light influence plant height?
      Testable ↔️ Will light intensity affect plant growth?
    • The null hypothesis proposes that there is no relationship between variables.

      True
    • What is the primary goal of designing an experimental procedure?
      Maintain experiment's validity
    • What is the purpose of control variables in an experiment?
      Isolate independent variable
    • What are the three types of variables identified in experimental design?
      Independent, dependent, control
    • Quantitative data involves numerical measurements that can be statistically analyzed
    • Controlling control variables ensures that the results can be attributed to the independent variable alone.
    • The research question provides a clear focus for the experiment and ensures the data collected is meaningful
    • What is an example of a directional hypothesis for the research question "Does the amount of light affect plant growth?"
      Increasing light increases height
    • What are the characteristics of a good research question?
      Specific, measurable, testable
    • The independent variable is the variable that is manipulated or changed by the researcher.
    • Match the type of data with its definition:
      Quantitative data ↔️ Numerical measurements
      Qualitative data ↔️ Observations and descriptions
    • A good research question is specific, measurable, and testable.

      True
    • There are two main types of hypotheses: directional and null
    • What is the first step in designing an experimental procedure?
      Identify independent variable
    • The dependent variable is the variable that is measured or observed in an experiment.

      True
    • When designing an experiment, safety and ethical considerations are crucial to mitigate potential risks
    • What are the two main types of data collected in experiments?
      Quantitative and qualitative
    • Why is it important to develop controls in an experimental procedure?
      Ensure experiment's validity
    • Match the hypothesis type with its description:
      Directional Hypothesis ↔️ Predicts the specific direction of the relationship
      Null Hypothesis ↔️ Predicts no relationship between variables
    • What are the three main types of experimental variables?
      Independent, dependent, control
    • Control variables are kept constant to isolate the effect of the independent variable.

      True
    • Quantitative data can be analyzed statistically
    • What is a hypothesis in experimental design?
      A testable statement
    • Steps in designing an experimental procedure:
      1️⃣ Identify independent variable
      2️⃣ Determine dependent variable
      3️⃣ List control variables
      4️⃣ Choose data collection methods
      5️⃣ Decide sample size and trials
    • The independent variable is the variable that the researcher manipulates
    • Steps in designing an experimental procedure
      1️⃣ Identify Independent Variable
      2️⃣ Determine Dependent Variable
      3️⃣ List Control Variables
      4️⃣ Choose Data Collection Methods
      5️⃣ Decide Sample Size and Trials
      6️⃣ Consider Safety and Ethics
    • Match the variable type with its definition:
      Independent Variable ↔️ Manipulated by the researcher
      Dependent Variable ↔️ Measured or observed
      Control Variables ↔️ Kept constant to isolate IV
    • Control variables must be kept consistent to ensure the validity of the experiment.

      True
    • What safety measures should be considered when handling plant waste in an experiment?
      Proper disposal in compost bin
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