Avoid telling the participants that the medication is supposed to stop obsessive thinking. 
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The results of carefully controlled observations of Clever Hans and his ability to solve math problems showed that ___________. (Points : 1) 
he could not do math
he could add, but he could not multiply
he was excellent in math
he was cued by the owner looking up or down
Dr. Kamau is conducting a metaanalysis of research on cultural differences in musical preferences. In addition to analyzing all journal articles from the last 10 years, she also analyzes all theses, dissertations, and conference presentations she can locate and obtain data from. Dr. Kamau is attempting to minimize which type of bias? (Points : 1) 
Cultural bias
Experimenter bias
Gender bias
Publication bias
Dr. Matthews is interested in investigating gender bias among mothers. One hundred mothers were asked to rate an article in terms of its persuasiveness. The article was on the topic of education. The subjects were assigned to one of two groups. One group of 50 mothers read the article and were told that it was authored by a woman named Stephanie James. The other group of 50 mothers read the same article but were told it was authored by a man named James Stevens. After reading the article, each subject rated the article on a 7point scale as follows. not at all persuasive 1 2 3 4 5 6 7 very persuasive The average rating scores were compared for the two groups; that is, the group with a female author versus the group with a male author. Results indicated that the average rating was much higher when the article was attributed to a male author than to a female author. Indicate whether the independent and dependent variables are quantitative or qualitative. (Points : 1) 
Independent variable: quantitative; dependent variable: qualitative
Independent variable: quantitative; dependent variable: quantitative
Independent variable: qualitative; dependent variable: quantitative
Independent variable: qualitative; dependent variable: qualitative
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studying 
Question 7 of 15Research on extrasensory perception (ESP) has been controversial to say the least. Dr. Psychic posits that ESP is a type of intellectual skill that must be nurtured and developed like mathematical or linguistic abilities. Furthermore, he believes that hypnosis may be helpful in fostering ESP development. One standard ESP task involves the use of special cards that have only five denominations. The experiment that Dr. Psychic used was to take a deck of 200 cards and have a “sender” shuffle them. The sender looks at the first card, thinks of the image on the card, and then the subject guessed what the card is. This process is repeated throughout the entire deck. ESP is measured by the number of correct guesses on the part of the subject (the receiver). Dr. Psychic used this task with 100 military volunteers. Two conditions were used. In the first condition, 50 randomly assigned volunteers (25 males and 25 females) were hypnotized and given the task above. In the second condition, and additional 50 randomly assigned volunteers (25 males and 25 females) completed the task without being hypnotized. The average number of correct predictions was computed for the two groups. These averages turned out not to be statistically significantly different from each other and it was concluded that hypnosis does not affect ESP. What variables are explicitly held constant by the experimenter? (Points : 1) 
Images on the cards, use of hypnosis on both groups, time of day subjects were tested
Gender distribution of the two groups, same deck of cards used by both groups, use of hypnosis on both groups
Gender distribution of the two groups, use of only military subjects, same deck of cards used by both groups
None of the above—nothing was held constant by the experimenter.
statistical linear [design, technique?] 
Recruit a group of 27 control participants with paraphilias and compare the therapeutic efficacy of the medication in both groups. 
The reliability of the tests is strong. 
Dr. Matthews is interested in investigating gender bias among mothers. One hundred mothers were asked to rate an article in terms of its persuasiveness. The article was on the topic of education. The subjects were assigned to one of two groups. One group of 50 mothers read the article and were told that it was authored by a woman named Stephanie James. The other group of 50 mothers read the same article but were told it was authored by a man named James Stevens. After reading the article, each subject rated the article on a 7point scale as follows. not at all persuasive 1 2 3 4 5 6 7 very persuasive The average rating scores were compared for the two groups; that is, the group with a female author versus the group with a male author. Results indicated that the average rating was much higher when the article was attributed to a male author than to a female author. What variables are explicitly held constant by the experimenter? (Points : 1) 
Content of the article, the study was conducted only with mothers
The age of the subjects, the ethnicities of the subjects
The ratings by the subjects, the age of the subjects
None of the above—nothing was held constant by the experimenter
Randomly assign subjecs to the medication and control groups. 
Simple random sampling 

14 of
the independent variable 