Across
- 3. – A list of questions used to collect information from people.
- 6. – The researcher knows who the participants are but keeps their identities secret.
- 9. – A way to measure how two things are related. (Example: More study time often means higher grades.)
- 10. – The basic structure or plan used to study a problem.
- 11. Hypothesis – A prediction that nothing will change. (Example: "This medicine has no effect.")
- 12. – The limits of a study, decided by the researcher (e.g., only studying students in one school, not all students).
- 15. – No one, not even the researcher, knows who the participants are.
- 16. Variable – The factor that is changed by the researcher to see its effect. (Example: Amount of water given to a plant.)
Down
- 1. Group – A group in an experiment that does not get the special treatment. They are compared to the group that does receive it.
- 2. – The average of a set of numbers. (Example: If three students scored 80, 85, and 90, the mean score is (80+85+90) ÷ 3 = 85.)
- 4. Sampling – Choosing people for a study without random selection. (Example: Asking only your classmates instead of picking random students.)
- 5. – An educated guess about what will happen in an experiment.
- 7. – How well the sample (the people or data you study) matches the whole group you are studying.
- 8. – The whole group you are studying. (Example: If you are studying high school students, all high school students are your population.)
- 13. Variable – The outcome or result that changes based on another factor. (Example: In an experiment about plant growth, the plant’s height is the dependent variable.)
- 14. of Error – A small allowed mistake in a study. (Example: If a survey says 70% of people like pizza, the real number could be between 68% and 72%.)