Which research method is least likely to involve a control group? A. Experiment B. Survey C. Case study D. Naturalistic observation 相关知识点: 试题来源: 解析 C。案例研究最不可能涉及对照组。实验法通常有实验组和对照组;调查法和自然观察法一般也不涉及对照组。案例研究的优点是深入特定情况,缺点...
The monitor near the bee group picked up an increase in electrical charge while the control monitor detected no such effect, confirming their assumption.(为了证实蜜蜂携带电荷,研究人员在布里斯托尔大学附近的一大群蜜蜂附近放置了一个电场监测器。他们还在没有蜜蜂群的地方放置了一个控制监测器。靠近蜜蜂组的...
Half of the subjects in an experiment--the experimental group--consumed large quantities of a popular artificial sweetener. Afterward, this group showed lower cognitive abilities than did the other half of the subjects--the control group--who did not consume the sweetener. The detrimental effects ...
Other musicians who have traded the bow or piano for the baton(指挥棒)have failed; the transition is not easy, of which he is aware. “The most crucial thing is the human chemistry between conductor and players. You must avoid at all costs being an outsider, as though saying to the orc...
SimpleX Chat - The most private and secure chat and applications platform - now with double ratchet E2E encryption. AGPL-3.0 Haskell Spectrum 2 - Spectrum 2 is an open source instant messaging transport. It allows users to chat together even when they are using different IM networks. (Source ...
1. Where is this text probably taken from? A. A global travel journal. B. An undergraduate course plan. C. A welcome speech for freshman. D. A college application guide. 2. Which is the right time for you to apply for 2024 sprin...
Answer to: A conclusion from a specific experiment is true and valid only under the conditions in which the experiment was performed. 1) True 2)...
Dedicated to spreading the Good News of Basic and Applied Science at great research institutions world wide. Good science is a collaborative process. The rule here: Science Never Sleeps. Another rule here: Scientists "invent" nothing. Instead scientists "discover". Everything which is now fact ...
As driving error is a main contributory factor of road accidents, its causes and consequences are of great interest in the road safety decision making process. This paper investigates several factors (including driver distraction, driver characteristics and road environment) that affect overall driving ...
So we've been studying the babies by conducting an experiment. During our experiment, the baby, usually a six-monther, sits on a parent's lap, and we train them to turn their heads when a sound changes—like from "ah" to "ee". ...