Research Method- CH 3
RESEARCH STUDY 3.4: Dr. Kang, a cognitive psychologist, conducts an experiment examining the effect of emotion on memory. He provides lists of 15 words to two groups of participants at his university. He puts the names of all the participants in a hat. The first 20 names he assigns to Group A and the last 20 he assigns to Group B. Group A is given a list of words that are very emotional in content (e.g., passion, murder). Group B is given a list of words that are neutral in content (e.g., houseplant, desk). He then measures how many words each group is able to remember after being distracted for 5 minutes by watching a video about the history of the university. He finds that Group A remembers 15% more words than Group B. Based on this study, Dr. Kang can make which of the following claims?
emotion enhances memory
When researchers conduct an experiment comparing two different treatment conditions, they are likely to be more concerned with ______ validity than _______ validity
internal; external
which of the following is the difference between claims based on personal experience (anecdotal claims) and frequency claims?
Anecdotal claims are not based on scientific studies, but frequency claims are.
Which of the following questions assesses internal validity when evaluating causal claims?
Does the study establish temporal precedence?
RESEARCH STUDY 3.2 Dr. Ramon makes the following claim: "Watching television leads people to spend less time communicating with their spouses, study says." Dr. LaSalle makes the claim: "Research shows that making more money correlates with spending less time talking with your spouse." Refer to Research Study 3.2 above to answer the following question. Which of the following statements is true of Dr. Ramon's and Dr. LaSalle's claims?
Dr. Ramon's claim goes further than Dr. LaSalle's claim
Which of the following makes certain constructs harder to operationalize?
Some constructs are difficult to observe
Anton and his friends are discussing a study he read about in his developmental psychology class. In the study, the researcher made the claim that most middle school students who are bullied have low self-esteem. Anton is concerned that the researcher made a Type I error. What does that mean?
The researcher concluded there was a relationship, but there isn't really one.
Dr. Kang, a cognitive psychologist, conducts an experiment examining the effect of emotion on memory. He provides lists of 15 words to two groups of participants at his university. He puts the names of all the participants in a hat. The first 20 names he assigns to Group A and the last 20 he assigns to Group B. Group A is given a list of words that are very emotional in content (e.g., passion, murder). Group B is given a list of words that are neutral in content (e.g., houseplant, desk). He then measures how many words each group is able to remember after being distracted for 5 minutes by watching a video about the history of the university. He finds that Group A remembers 15% more words than Group B. Dr. Kang sends his study to a journal to be published. One of the peer reviewers questions the way Dr. Kang manipulated emotion, arguing that being exposed to emotional words does not make one emotional. The reviewer is questioning which of the following?
the construct validity of the study
Anton and his friends are discussing a study he read about in his developmental psychology class. In the study, the researcher made the claim that a majority of middle school students who are bullied have low self-esteem. Clarissa questions the study, saying, "I am not sure that I am convinced—I am not sure you can really measure being bullied." Quinn also questions the study, saying, "Which middle school students did they study? I am curious if they included both private and public school students." Clarissa's concern is addressing which of the following?
The study's construct validity
