LMS Integrated MindTap Psychology, 1 term (6 months) Printed Access Card for Gravetter/Wallnau/Forzano's Essentials of Statistics for the Behavioral Sciences, 9th
9th Edition
ISBN: 9781337275163
Author: Frederick J Gravetter, Larry B. Wallnau, Lori-Ann B. Forzano
Publisher: Cengage Learning
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Chapter 10, Problem 14P
In a classic study in the area of problem solving Katona (1940) compared the effectiveness of two methods of instruction. One group of participants was shown the exact, step-by-step procedure for solving a problem and was required to memorize the solution. Participants in a second group were encouraged to study the problem and find the solution on their own. They were given helpful hints and clues, but the exact solution was never explained. The study included the problem in the following figure showing a pattern of five squares made of match sticks. The problem is to change the pattern into exactly four squares by moving only three matches. (All matches must be used, none can be removed, and all the squares must be the same size.) After three weeks, both groups returned to be tested again. The two groups did equally well on the matchstick problem they had learned curlier. But when they were given new problems (similar to the matchstick problem), the memorization group had much lower scores than the group who explored and found the solution on their own. The following data demonstrate this result.
- a. Is there a significant difference in performance on new problems for these two groups? Use a two-tailed test with α = .05.
- b. Construct a 90% confidence
interval to estimate the size of the mean difference.
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In a classic study in the are of problem solving, Katona (1940) compared the effectiveness of two methods of instruction. One group of participants was shown the exact, step-by-step procedure for solving a problem and was required to memorize the solution. Participants in a second group were encouraged to study the problem and find the solution of their own. They were given helpful hints and clues, but the exact solution was never explained. The study included the problem in the following figure showing a pattern of five squares made of matchsticks. The problem is to change the pattern into exactly four squares by moving only thee matches. (All matches must be used, non can be removed, and all the squares must be the same size.) After 3 weeks, both groups returned to be tested again. The two groups did equally well on the matchstick problem they had learned earlier. But when they were given new problems (similar to the matchstick problem), the memorization group had much lower scores…
I need help with #1
For each problem, select the best response.
(a) Can pleasant aromas help a student learn better? Two researchers believed that the presence of a floral scent could improve a
person's learning ability in certain situations. They had twenty-two people work through a pencil and paper maze six times, three times
while wearing a floral-scented mask and three times while wearing an unscented mask. The three trials for each mask closely followed
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average, the subjects wearing the floral-scented mask completed the maze more quickly than those wearing the unscented mask,
though the difference was not statistically significant. This study is
A. a convenience sample.
B. an observational study, but not an experiment.
C. an experiment, but not a double-blind experiment.
D. a double-blind experiment.
(b) A study of the effects of running on personality involved 231 male…
Chapter 10 Solutions
LMS Integrated MindTap Psychology, 1 term (6 months) Printed Access Card for Gravetter/Wallnau/Forzano's Essentials of Statistics for the Behavioral Sciences, 9th
Ch. 10.1 - Which of the following is most likely to be an...Ch. 10.1 - Which of the following is most likely to be a...Ch. 10.1 - An independent-measures study comparing two...Ch. 10.2 - Which of the following is the correct null...Ch. 10.2 - Prob. 2LCCh. 10.2 - Prob. 3LCCh. 10.2 - Prob. 4LCCh. 10.3 - What is the value of the independent-measures t...Ch. 10.3 - Prob. 2LCCh. 10.3 - Prob. 3LC
Ch. 10.4 - Prob. 1LCCh. 10.4 - Which of the following is not an accurate...Ch. 10.4 - Prob. 3LCCh. 10.4 - Prob. 4LCCh. 10.5 - Which of the following accurately describes how...Ch. 10.5 - Which of the following accurately describes how...Ch. 10.5 - Which of the following sets of data would produce...Ch. 10 - Describe the basic characteristics that define an...Ch. 10 - Describe what is measured by the estimated...Ch. 10 - One sample has SS = 36 and a second sample has SS...Ch. 10 - One sample has SS = 60 and a second sample has SS...Ch. 10 - Two separate samples, each with n = 9 individuals,...Ch. 10 - Two separate samples receive different treatments....Ch. 10 - Research results suggest a relationship between...Ch. 10 - Does posting caloric content for menu items affect...Ch. 10 - A long history of psychology research has...Ch. 10 - Recent research has shown that creative people are...Ch. 10 - Recent research has demonstrated that music-based...Ch. 10 - McAllister et al. (2012) compared varsity football...Ch. 10 - Zhou and Vohs (2009) published a study showing...Ch. 10 - In a classic study in the area of problem solving...Ch. 10 - A researcher conducts an independent-measures...Ch. 10 - In a recent study, Piff, Kraus, Ct, Cheng, and...Ch. 10 - Describe the homogeneity of variance assumption...Ch. 10 - If other factors are held constant explain how...Ch. 10 - As noted on page 275, when the two population...Ch. 10 - Two samples are selected from the same population....Ch. 10 - For each of the following, assume that the two...Ch. 10 - For each of the following, calculate the pooled...Ch. 10 - It appears that there is some truth to the old...Ch. 10 - In 1974, Loftus and Palmer conducted a classic...
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