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WorksheetsConduct of Experimental Research
Total questions: 10
Worksheet time: 5mins
Which of the following best explains why experimental research is essential in testing cause-and-effect relationships?
It describes existing conditions without manipulation
It manipulates variables to determine causal relationships
It only observes natural phenomena as they occur
It gathers opinions and attitudes from participants
A researcher changes the amount of sunlight given to plants to test growth differences. Why is this an example of experimental research?
Because it focuses on plant behavior in natural conditions
Because it records only the natural growth of plants
Because it relies solely on previous literature
Because it manipulates an independent variable to observe its effect
If a teacher wants to know whether a new teaching strategy improves student performance, why should they use an experimental design?
To test if the strategy has a measurable impact on performance
To interview students about their feelings toward the strategy
To describe classroom conditions without making changes
To record attendance and participation rates
Which scenario best shows why experimental research is conducted rather than observational research?
When the researcher wants to explore naturally occurring behaviors
When the goal is to identify patterns or trends
When the researcher seeks to test the effect of one variable on another
When the study involves historical data
A study aims to test whether caffeine improves memory performance. Why is this an example of experimental research?
It collects opinions about caffeine
It measures only natural memory abilities
It manipulates caffeine intake to observe its effects
It relies on previous studies for conclusions
Match the followingA researcher claims a new fertilizer causes plants to grow faster. What makes experimental research appropriate to support this claim?
It allows testing with controlled variables and comparison groups
It relies on observation only
It uses interviews to gather gardener opinions
It focuses on historical plant growth data
Which of the following best summarizes the main reason for conducting experimental research?
To describe situations as they exist naturally
To determine how one variable directly affects another
To gather participant perspectives and opinions
To record and summarize existing data
Which of the following best justifies the use of experimental research in testing a new teaching method?
It allows observation of classroom behavior.
It describes how students feel about the new method.
It determines if the new method causes improvement in student performance.
It collects opinions from both teachers and students.
If a researcher concludes that a drug effectively reduces fever, which factor most strengthens the validity of this conclusion?
Random assignment of participants to control and experimental groups.
Using only volunteers who already recovered.
Asking participants how they feel after taking the drug.
Allowing participants to choose their group.
researcher claims that experimental research is unnecessary for understanding consumer behavior. Which statement best evaluates this claim?
Incorrect, because controlled experiments reveal the factors influencing consumer choices.
Correct, because observation is more accurate.
Incorrect, because surveys always show consumer attitudes better.
Correct, because experiments take too long.
