When subjects in an experiment are chosen so that each has an equal chance of being in either the experimental group of the control group, we say that the subjects have been assigned:

Related Mcqs:

1. In experiments, placing subjects in experimental groups such that each subject has an equal probability of ending up in any experimental group is referred to as:

   A. random forecasting
   B. fandom selection
   C. random placement
   D. random assignment

2. Which TWO of the following statements are true of blocking?
   1: The phenomenon of blocking provides an interesting and much-studied instance of failure to learn, in spite of contiguous presentations of the CS and the US
   2: In a blocking experiment, animals receive training with what is termed a compound CS (Phase 2)
   3: The experimental group has first received a phase of training in which the US alone is conditioned (Phase 1)
   4: The experimental groups shows no (or very little evidence of learning about the CS that is presented in Phase 1

   A. 1 & 2
   B. 2 & 3
   C. 3 & 4
   D. 1 & 3

3. In an experiment, the control group should be treated in the same way as the experimental group except for ____________?

   A. completing pretest measures
   B. completing posts-test measures
   C. receiving different levels of the independent variable
   D. receiving different levels of the confounding variable

4. The control group and the experimental group in an experiment are treated exactly the same except for the:

   A. dependent variable
   B. independent variable
   C. extraneous variables
   D. replication variables

5. Dr. Jamshed wants to see if person’s IQ changes as they get older. To do this he takes three groups of subjects. Group i is made up of 10 years old, and Group III of 25 years old. Dr. Jamshed tests all three groups of their IQ level. The design of this experiment is called:

   A. longitudinal study
   B. more information is needed to determine the design of the experiment
   C. Gesell’s dome
   D. cross sectional study

6. If someone already spreads the rumor about an experiment for being assessment of racist attitudes and the subjects then take care of not showing racist attitudes. The result of experiment will be __________?

   A. invalid
   B. biased
   C. error
   D. unreliable

7. On Monday, the meteorologist forecast a 20 percent chance of rain, so Sharmila took her umbrella to work. On Friday, he reported an 80 percent chance than it would not rain, so Sharmila left her umbrella at home. Sharmila’s behavior illustrates the impact of:

   A. the representative heuristic
   B. the belief perseverance phenomenon
   C. overconfidence
   D. the framing effect

8. Stroebe and Diehl (1994) conducted a clever piece of research into why brainstorming does not appear to enhance individual creativity. They hypothesized that, during a brainstorming session, because may speak at a time, other group members have to keep silent, and may be distracted by the content of the group discussion or forget their own ideas. Storebe and Diehi termed this phenomenon ‘production blocking’, because the waiting time before speaking and the distracting influence of others ‘ idea could potentially block individuals from coming up with their ideas. The result of their subsequent study were clear-cut: participants generated approximately twice as many ideas when they were allowed to express their ideas as they occurred than when they had to wait their turn. But which two of the following can we infer from these results?
   1.That ‘production blocking’ does not occur in interactive brainstorming groups.
   2.That ‘production blocking’ is an important factor explaining the inferiority of interactive brainstorming groups.
   3.That it may be more effective to ask group members to develop their ideas in one group, and than express them to another group.
   4.That it may be more effective to ask group members to develop their ideas separately, and then express them in a subsequent joint meeting.

   A. 1 & 2
   B. 2 & 3
   C. 1 & 3
   D. 2 & 4

9. Stroebe and Diehl(1994) conducted a clever piece of research into why brainstorming does not appear to enhance individual creativity. They hypothesized that, during a brainstorming session, because may speak at a time, other group members have to keep silent, and may be distracted by the content of the group discussion or forget their own ideas. Storebe and Diehi termed this phenomenon ‘production blocking’, because the waiting time before speaking and the distracting influence of others ‘ idea could potentially block individuals from coming up with their ideas. The result of their subsequent study were clear-cut: participants generated approximately twice as many ideas when they were allowed to express their ideas as they occurred than when they had to wait their turn. But which two of the following can we infer from these results?
   1.That ‘production blocking’ does not occur in interactive brainstorming groups.
   2.That ‘production blocking’ is an important factor explaining the inferiority of interactive brainstorming groups.
   3.That it may be more effective to ask group members to develop their ideas in one group, and than express them to another group.
   4.That it may be more effective to ask group members to develop their ideas separately, and then express them in a subsequent joint meeting.

   A. 1 & 2
   B. 2 & 3
   C. 1 & 3
   D. 2 & 4

10. The experimental procedure in which both the experimenter and subject are unaware of who is in the experimental and who is in the control group is referred to as the:

    A. single-blind procedure
    B. the type of experiment is not possible
    C. stereotaxic procedure
    D. double-blind procedure