Stats For Behav. Science W/mindtap
10th Edition
ISBN: 9781337367691
Author: GRAVETTER
Publisher: Cengage
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Chapter 17, Problem 17P
17. In a study similar to one conducted by Fallon and Rozin (1985), a psychologist prepared a set of silhou ettes showing different fema1e body shape
a,. Do the data indicate a significant difference
between the actual preferences for the men and the preferences predicted by the women? Test at the
05 level of significance.
b. Compute the phi-coefficient to n1eamre the
strength of the relationship.
Women
Men
Body lm age Profiles
Somewhat Slightly Slightly
Thin
Thin
Heavy
Somewhat Heavy
40
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The study was established to observed that monozygotic twins share numerous physical, psychological, and pathological traits. The investigators measured an intelligent score of 10 pairs of twins. The data obtained are as follows:
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1) Is there any evidence that the mean score depends on birth order at a 95% confidence interval?
(b) Test an appropriate set of hypotheses indicating that the mean score does not depend on birth order.
The characteristics of check teeth (e.g., molars) can provide anthropologists with information on the dietary habits of extinct mammals. The check teeth of an extinct primate species was the subject of research reported in the American Journal of Physical Anthropology (Vol. 142, 2010). A total of 18 check teeth extracted from skulls discovered in western Wyoming were analyzed. Each tooth was classified according to degree of wear (unworn, slight, light-moderate, moderate, moderate-heavy, or heavy). The 18 measurements are listed here.
Data on Degree of Wear
Unknown
Slight
Unknown
Slight
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Heavy
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Light-moderate
Unknown
Light-moderate
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Moderate
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Identify the variable measured in the study and its type (qualitative and quantitative)
Form frequency distribution.
Identify the degree of wear category that occurred most often in the sample of 18 check teeth.
Willerman et al. (1991) collected a sample of 40 right-handed Anglo introductory psychology students at a large southwestern university. Subjects took four
subtests (Vocabulary, Similarities, Block Design, and Picture Completion) of the Wechsler Adult Intelligence Scale-Revised (1981). The researchers used
Magnetic Resonance Imaging (MRI) to determine the brain size of the subjects. The research hypothesis was that brain size is correlated with IQ. The data are
below:
Participant
1
2
3
4
6
17
8
Which statistical test would you select: Pearson Correlation
Ho: p = 0
H₁: p = 0
◆
◆
Enter the data above into and JAMOVI and use the correct statistical procedure to test the null hypothesis - answer the following questions:
What is the coefficient that indicates the strength of the relationship? r ◆ = 0
What is the standard error?
What is the appropriate 95% CI? [
What is the d-effect size?
Brain Size
110
90
100
92
94
98
104
111
What is the t-observed?
What is the actual p-value?
Complete the…
Chapter 17 Solutions
Stats For Behav. Science W/mindtap
Ch. 17 - l. Parametric tests (such as t or ANOVA) differ...Ch. 17 - The student population at the state college...Ch. 17 - 3.A developmental psychologist would like to deter...Ch. 17 - Data from the Motor Vehicle Department indicate...Ch. 17 - Research has demonstrated that people tend to be...Ch. 17 - Suppose that the researcher fromthe previous...Ch. 17 - A professor in the psychology department would...Ch. 17 - Automobile insurance is much more expensive for...Ch. 17 - The color red is often associated with anger and...Ch. 17 - Prob. 10P
Ch. 17 - Prob. 11PCh. 17 - 12. Many businesses use some type of customer...Ch. 17 - In a classic study, Loftus and Palmer (1974)...Ch. 17 - In a study investigating freshman weight gain, the...Ch. 17 - Research results suggest that IQ scores for boys...Ch. 17 - 16. Gender difference in dream content are wen...Ch. 17 - 17. In a study similar to one conducted by Fallon...Ch. 17 - 18. A recent study indicate that people tend to...Ch. 17 - 19. Research indicates that people who volunteer...Ch. 17 - Cialdini, Reno, andKallgre,n (11990) examined how...Ch. 17 - Although the phenomenon is not well understood, it...Ch. 17 - In the Preview for this chapter we presented a...Ch. 17 - Research has demonstrated strong gender...
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