scholarly journals The Relationship of the Edwards Personal Preference Schedule to Success in Naval Flight Training

1965 ◽  
Author(s):  
Floyd E. Peterson ◽  
Norman E. Lane ◽  
Robert S. Kennedy
Keyword(s):  
Flight Training ◽  
Personal Preference ◽  
Edwards Personal Preference Schedule ◽  
Relationship Of ◽  
The Relationship

scholarly journals Adolescence Aggression as Related to Gender and Birth Order

2013 ◽  
Vol 38 ◽  
pp. 97-107
Author(s):  
Sabina Sultana ◽  
Laila Latif
Keyword(s):  
Birth Order ◽  
Aggressive Behaviour ◽  
T Test ◽  
Male And Female ◽  
Personal Preference ◽  
Edwards Personal Preference Schedule ◽  
And Gender ◽  
The Relationship ◽  
Rajshahi City

In the present study an attempt was made to find out whether aggressive behaviour is related to gender and birth order of the adolescence. A Bengali version of the aggression scale of Edwards Personal Preference Schedule (EPPS) was administered to one hundred students from different colleges in Rajshahi city. In order to investigate the relationship between aggressive behaviour and gender, they were divided into two groups, male and female and comparisons were made between them, on the basis of the scores obtained on the aggression scale employing‘t’ test. Secondly, in order to study the relationship between aggressive behaviour and birth order, the respondents were divided into two groups- first born and last born and comparisons were made between the two groups. The results of the study suggest that males are more aggressive than females and the last born children are more aggressive than the first born children. DOI: http://dx.doi.org/10.3329/rujs.v38i0.16552 Rajshahi University J. of Sci. 38, 97-107 (2010)

Study of Validity of Ratings

1982 ◽  
Vol 51 (3_suppl) ◽  
pp. 1263-1270 ◽  
Author(s):  
Haidar Ali Hooman
Keyword(s):  
Correlation Coefficients ◽  
The Self ◽  
Rating Systems ◽  
Peer Ratings ◽  
Personal Preference ◽  
Edwards Personal Preference Schedule ◽  
The Mean ◽  
Projection Error ◽  
The Relationship ◽  
Specific Error

As part of research on validation of the Edwards Personal Preference Schedule, this study indicates that in addition to the traditional well-known constant errors in ratings explored by numerous investigators, there is an error, which along with many other possible errors, may influence rating systems. This specific error, which may be called “projection error,” is a tendency to rate others high (or low) on the traits on which raters themselves are high (or low). It was hypothesized that the 20 male raters' own traits as measured by personality scales are more predictive of the ratings they assign to others than of their own self-ratings on the same traits. Analysis indicated that the relationship between the Edwards scales and the mean rater's ratings could not be considered a function of chance. Most variables of the Edwards schedule were more predictive of the mean rater's ratings than of the self-ratings and of the mean peer-ratings, without denying the predictability of the latter two for some traits. The study also showed that neither self-ratings nor mean peer-ratings were superior with respect to the number and the size of the correlation coefficients.

The relationship of the scleractinian corals to the rugose corals

Paleobiology ◽  
1980 ◽  
Vol 6 (02) ◽  
pp. 146-160 ◽  
Author(s):  
William A. Oliver
Keyword(s):  
Critical Points ◽  
Scleractinian Corals ◽  
Convincing Evidence ◽  
Early Triassic ◽  
Rugose Corals ◽  
History Of ◽  
The Subject ◽  
Relationship Of ◽  
The Relationship ◽  
Biologic Factors

The Mesozoic-Cenozoic coral Order Scleractinia has been suggested to have originated or evolved (1) by direct descent from the Paleozoic Order Rugosa or (2) by the development of a skeleton in members of one of the anemone groups that probably have existed throughout Phanerozoic time. In spite of much work on the subject, advocates of the direct descent hypothesis have failed to find convincing evidence of this relationship. Critical points are:(1) Rugosan septal insertion is serial; Scleractinian insertion is cyclic; no intermediate stages have been demonstrated. Apparent intermediates are Scleractinia having bilateral cyclic insertion or teratological Rugosa.(2) There is convincing evidence that the skeletons of many Rugosa were calcitic and none are known to be or to have been aragonitic. In contrast, the skeletons of all living Scleractinia are aragonitic and there is evidence that fossil Scleractinia were aragonitic also. The mineralogic difference is almost certainly due to intrinsic biologic factors.(3) No early Triassic corals of either group are known. This fact is not compelling (by itself) but is important in connection with points 1 and 2, because, given direct descent, both changes took place during this only stage in the history of the two groups in which there are no known corals.

Skeletal elements of crinoid echinoderms: High-resolution structural and microanalytical results

1983 ◽  
Vol 41 ◽  
pp. 194-195
Author(s):  
D. F. Blake ◽  
L. F. Allard ◽  
D. R. Peacor
Keyword(s):  
High Resolution ◽  
Marine Invertebrates ◽  
Sea Urchins ◽  
Structural Features ◽  
Sea Stars ◽  
High Resolution Tem ◽  
Relationship Of ◽  
The Relationship ◽  
Insight Into

Echinodermata is a phylum of marine invertebrates which has been extant since Cambrian time (c.a. 500 m.y. before the present). Modern examples of echinoderms include sea urchins, sea stars, and sea lilies (crinoids). The endoskeletons of echinoderms are composed of plates or ossicles (Fig. 1) which are with few exceptions, porous, single crystals of high-magnesian calcite. Despite their single crystal nature, fracture surfaces do not exhibit the near-perfect {10.4} cleavage characteristic of inorganic calcite. This paradoxical mix of biogenic and inorganic features has prompted much recent work on echinoderm skeletal crystallography. Furthermore, fossil echinoderm hard parts comprise a volumetrically significant portion of some marine limestones sequences. The ultrastructural and microchemical characterization of modern skeletal material should lend insight into: 1). The nature of the biogenic processes involved, for example, the relationship of Mg heterogeneity to morphological and structural features in modern echinoderm material, and 2). The nature of the diagenetic changes undergone by their ancient, fossilized counterparts. In this study, high resolution TEM (HRTEM), high voltage TEM (HVTEM), and STEM microanalysis are used to characterize tha ultrastructural and microchemical composition of skeletal elements of the modern crinoid Neocrinus blakei.

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