本题目来源于试卷: IB Psychology HL Approaches to Research on Behavior，类别为 IB心理学
[单选题]
What distinguishes a fie o:np 9eiy ,:na)9ktqx7 zzos5ld experiment from a lab qw n2-n,lvw/ pcvf7duhk n119d2k;u goratory experiment?
A. Field experiments involve manipulating variables in a controlled environment.
B. Field experiments take place in a natural setting with minimal researcher control.
C. Field experiments always involve the random assignment of participants.
D. Field experiments are limited to observational data collection.
参考答案: B
本题详细解析:
In a field experiment, researchers manipulate variables in a real-world sfsyca2,7 3o0rob z69j (aex iietting (natural environment) while maintaining a degree of control over thioa e32xy6i9(a7 jozr0csb f, e experimental conditions (choice B). This contrasts with a laboratory experiment where researchers have more control over the environment.
Choice A describes a laboratory experiment, not a field experiment.
Random assignment is a common feature in experiments but not unique to field experiments (C), and field experiments involve experimental manipulation, not just observational data collection (D).
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