A proposed research study states that participants will be randomized to groups and assessed after ...

A proposed research study states that participants will be randomized to groups and assessed after the intervention.
 
  In order to control for threats to internal validity, what other feature must be included to create a posttest-only control-group design?
   a) A no-intervention grou
 b) A pretest group
 c) Random selection
 d) Random assignment

Question 2

Which of the following is an example of an action slip?
 
  a) Driving halfway to work before realizing you were supposed to drive to a medical appointmen
 b) Reaching out with your hand while driving to prevent a child from flying forward during a sudden stop
 c) Neglecting to use a turn signal at an intersection where all the cars in front of you are also turning
 d) Ignoring a stop sign because you are talking on a cell phone while driving

Question 3

A computer technician spends his workday dealing with complex technical problems. Then he goes home and can't get the monitor on his wife's desktop computer to work.
 
  After searching in vain for problems such as a defective video card, he is embarrassed when his 6-year-old son observes that the monitor is not plugged in. The technician's problem is an example of which of the following?
   a) Negative set (Einstellung
 b) Functional fixedness
 c) Lack of an algorithm
 d) Insufficient incubation

Question 4

In an attempt to reduce the likelihood of a Type II error, the experimenter proposes to
 
  a) recruit a very large group of participants
 b) recruit a small group of participants.
 c) select a weak independent variable.
 d) select a weak dependent variable.