LATEST UPDATE FOR PSYCH TEST: RESEARCH AND STATISTICS REVISION QUESTIONS WITH ANSWERS (VERIFIED)

LATEST UPDATE FOR PSYCH TEST: RESEARCH AND STATISTICS REVISION QUESTIONS WITH ANSWERS (VERIFIED) A market researcher is interested in ascertaining which of two possible packages is more likely to entice buyers to purchase a new brand of chocolate chip cookies. In this study, which of the following pairs represents the independent variable and the dependent variable respectively? - ANSWER-The different types of packages; total sales for each of the packages A researcher conducts an experiment to test the claim that new drug Y is more effective than standard drug X in inhibiting arousal. The researcher randomly assigns participants to receive drug Y or drug X and subsequently measures arousal. In this experiment participants receiving drug Y constitute the: - ANSWER-Experimental group A researcher studying the effect of noise level on concentration randomly assigns student participants to either a noisy room or a quiet room to take a problem solving test. The researcher subsequently compares the two groups' using a t test and concludes p=.05 The independent variable in this study is the: - ANSWER-noise level A researcher studying the effect of noise level on concentration randomly assigns student participants to either a noisy room or a quiet room to take a problem solving test. The researcher subsequently compares the two groups' using a t test and concludes p=.05 The researcher's conclusion that p=.05 most likely indicates - ANSWER-That the difference between the two groups is statistically significant A researcher studying the effect of noise level on concentration randomly assigns student participants to either a noisy room or a quiet room to take a problem solving test. The researcher subsequently compares the two groups' using a t test and concludes p=.05 The dependent variable in this study is the: - ANSWER-problem solving test scores Dr. Ruiz has published the findings of his research regarding Howard Gardner's multiple intelligences theory in a scientific journal. After comparing the test scores of all of participants who scored high in mathematical intelligence also scored fairly high in musical intelligence. Which research method did Dr. Ruiz use? - ANSWER-Correlational Free Response+extra credit - ANSWER-see picture If deception is involved, researchers are legally required to fully explain the true purpose of the study to participants and answer questions they might have at the end of the experiment. This process is known as - ANSWER-debriefing In a well designed in controlled experiment, the researcher manipulates the textbook students use in order to measure the effects of a new and improved book on test scores for a philosophy class. It turns out that the average test score among participants in the experimental group was 90 and the average test score for participants in the control group was 78 if the 12 point difference between the two groups statistically it significant, what would that mean? - ANSWER-a difference as big as 12 points or more would be unlikely to happen by chance In a well set up double blind experiment involving thousands of student participants who were randomly put into two groups, one group was given a cup of Venti starbucks coffee, and the other was given de-caffeinated coffee. Then they were all given the same Standardized test. The results indicated that no significant difference as to which group performed better, and both groups claimed to have equal levels of energy and alertness. This can best be attributed to - ANSWER-The Placebo effect In an experiment to determine if working out three dimensional optical allusions results in individuals leaning back and forth more than looking at two dimensional optical allusions participants were asked to view both types of images for four minutes while standing. The researchers then carefully measured how often the participants shifted their weight while viewing each type of image. The number of times participants shifted their weight represents a - ANSWER-operational definition of the dependent variable In order to study the effects of unpredictable noise on learning, a researcher has one group of college students study a list of words while jackhammer sounds are played sporadically over headphones in another group study the same list while listening to a steady rhythm of jackhammer sound. After each group has time to study, they are both given an identical test on the words. In this experiment, the independent variable would be _______ and the dependent variable would be _______. - ANSWER-the presence or absence of unpredictable noise; the number of questions answered correctly Participants in experiments have an equal chance of being placed within either the experimental or control condition. This ensures that the average behavior of members in the control group will not differ from the average behavior of members in the experimental group. What procedure does the statement represent? - ANSWER-random assignment Studies showing president's IQs since 1960 indicate - ANSWER-That most of our Presidents' IQs were at least, one standard deviation above the norm and many were two or more The double blind procedure refers to a method of experimentation in which: - ANSWER-Neither the participants nor the experimenter know which members are in the experimental group The population for an experiment consists of all the students in a local grade school. The school consists of 70 boys and 30 girls. The best way to ensure that the actual participants in the experiment represent the population as a whole would be to: - ANSWER-Use stratified samples. The percentage of participants selected should be about 70% male, and the percentage of those assigned to each group should be about 70% male To follow someone around during the course of his/her free time, and writing down everything he/she does, would be an example of: - ANSWER-A naturalistic observation To say (Today) that I knew all along that Donald Trump was going to win the Presidency is an example of - ANSWER-Hindsight Bias To say there is a correlation coefficient of -.87 between number of scrambled eggs eaten in a month and 400 meter times on the track, would indicate that - ANSWER-There is a strong negative correlation between egg consumption and 400 meter times, but no cause and effect is implied To study Matteo Lonardo's linguistic development from the time he is born to age 20, would be an example of - ANSWER-A longitudinal study What is the median of these numbers (9, 26, 7, 392, 4, 77, 2, 11) - ANSWER-10 Which of the following is a measure of central tendency that is most influenced by extreme scores? - ANSWER-Mean Which of the following is a weakness or correlational research? - ANSWER-correlational research does not imply causation Which of the following provides the best operational definition for studying road rage while driving? - ANSWER-The number of times a driver yells a swear word at another driver, during the course of a two hour drive across town Which of the following scatterplots depicts the most predictive negative correlation between two variables? - ANSWER-see picture Who does Ari love more than anything in the entire world? - ANSWER-Her baby lance:)