PSY 245 Lesson 10 ACTUAL QUESTIONS
AND CORRECT ANSWERS
Which of the following allows Dr. Lonsbary to conclude that she met the temporal
precedence rule for causality? - CORRECT ANSWERS✅✅having people listen to music or
silence before they wrote down the list of words they remembered
Which of the following is true of control variables? - CORRECT ANSWERS✅✅Control
variables are kept the same for all participants
Which of the following could Dr. Lonsbary conclude from her study? - CORRECT
ANSWERS✅✅Listening to music can cause changes in mood
The question "Can the causal relationship generalize to other people, places, and times?"
refers to what type of validity? - CORRECT ANSWERS✅✅External
When a participant arrives for her experiment, Dr. Dajani flips a coin to determine which of
two experimental conditions the participant will receive. Using this strategy increases the
________ of her study - CORRECT ANSWERS✅✅Internal validity
Dr. Lonsbary is considering doing a follow-up study in which instead of asking participants
to listen to music to induce mood, she has them write either a story about a character who just
won the lottery or a story about a character who just experienced the death of their spouse.
This change in the mood variable is designed to enhance the study's ________ validity. -
CORRECT ANSWERS✅✅External validity
Which of the following is true of selection effects? - CORRECT ANSWERS✅✅Selection
effects can occur when experimenters allow participants to choose their own treatment group.
Dr. Lonsbary's colleague, Dr. Chavis, recommended randomly assigning the participants to
the three groups. His recommendation was designed to avoid which of the following? -
CORRECT ANSWERS✅✅A selection effect
AND CORRECT ANSWERS
Which of the following allows Dr. Lonsbary to conclude that she met the temporal
precedence rule for causality? - CORRECT ANSWERS✅✅having people listen to music or
silence before they wrote down the list of words they remembered
Which of the following is true of control variables? - CORRECT ANSWERS✅✅Control
variables are kept the same for all participants
Which of the following could Dr. Lonsbary conclude from her study? - CORRECT
ANSWERS✅✅Listening to music can cause changes in mood
The question "Can the causal relationship generalize to other people, places, and times?"
refers to what type of validity? - CORRECT ANSWERS✅✅External
When a participant arrives for her experiment, Dr. Dajani flips a coin to determine which of
two experimental conditions the participant will receive. Using this strategy increases the
________ of her study - CORRECT ANSWERS✅✅Internal validity
Dr. Lonsbary is considering doing a follow-up study in which instead of asking participants
to listen to music to induce mood, she has them write either a story about a character who just
won the lottery or a story about a character who just experienced the death of their spouse.
This change in the mood variable is designed to enhance the study's ________ validity. -
CORRECT ANSWERS✅✅External validity
Which of the following is true of selection effects? - CORRECT ANSWERS✅✅Selection
effects can occur when experimenters allow participants to choose their own treatment group.
Dr. Lonsbary's colleague, Dr. Chavis, recommended randomly assigning the participants to
the three groups. His recommendation was designed to avoid which of the following? -
CORRECT ANSWERS✅✅A selection effect
