An elementary school teacher wants to know how receptive his students are to new ideas. He decides to present new ideas his students (randomly determined) during arithmetic class or during social studies class. Furthermore, he decides to present these new ideas either just before or just after recess. Which of the following results represents null results (no significant main effects and no

significant interaction)?

a. The students always like the new ideas, but only in social studies, regardless of when recess occurs.
b. The students never like the new ideas in either class, regardless of when recess occurs.
c. The students only like the new ideas after recess. They don't like the new ideas before recess, and the type of class makes no difference.
d. The students like the new ideas in social studies after recess but they like the new ideas in arithmetic before recess.


B
The first alternative illustrates a main effect of type of class. The second alternative illustrates null results (no effects). The third alternative illustrates a main effect of recess, and the last alternative illustrates an interaction.

Psychology

You might also like to view...

Helena has learned that she gets motion sickness easily. If Helena takes medicine before a boat ride so she doesn't get sea sick, she is demonstrating

a. avoidance learning. b. a phobia. c. stimulus discrimination. d. escape learning. e. shaping.

Psychology

Jewel takes an antianxiety drug for the treatment of her panic disorder. She experiences a common side effect from her treatment. Which side effect is Jewel most likely to experience?

a. sexual dysfunction b. memory impairment c. dry mouth d. drowsiness e. muscular tremors

Psychology

Which of the following statements about gender differences in average longevity is false?

A) Men are more susceptible to infectious illnesses. B) Male babies are more likely to die prematurely. C) Men are more susceptible to genetic defects. D) Men are at greater risk for contracting fatal diseases.

Psychology

In Sternberg's triangular theory of love, intimacy refers to

A) behaviors that are sexual in nature B) feelings of closeness, mutual understanding, and concern C) an emotional state characterized by high bodily arousal D) sexual monogamy

Psychology