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Apparatus For Measurement Of Reaction Time To Complex Differential Stimuli Presented As A Standard Rate In Nonrepetitive Series, Robert G. Pfefferkorn Jan 1954

Apparatus For Measurement Of Reaction Time To Complex Differential Stimuli Presented As A Standard Rate In Nonrepetitive Series, Robert G. Pfefferkorn

Proceedings of the Iowa Academy of Science

The development of reaction time measurement methodology from the experimentations of Donders has been distinguished primarily by inventions of more accurate and reliable measuring instruments (5). Methodology and content have been changed but little and in fact have been simplified and condensed from the elaborate formulations of early psychophysics. On logical grounds speed of reaction has been postulated as an important trait positively related to the successful performance of certain psychomotor skills, e.g., driving a motor vehicle. However, experimental evidence to support this hypothesis has been inconsistent. Mostly the relationships to such performance have been found to be low. One …

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Stability And Validity Of The Strong Vocational Interest Blank In The Prediction Of Success In Veterinary Medicine Curriculum, T. E. Hannum, John R. Thrall Jan 1954

Stability And Validity Of The Strong Vocational Interest Blank In The Prediction Of Success In Veterinary Medicine Curriculum, T. E. Hannum, John R. Thrall

Proceedings of the Iowa Academy of Science

That indices of mental ability alone do not predict scholastic achievement adequately is a well-known fact. It would seem a reasonable hypothesis, then, that non-intellective influences, notably motivation or interest, are operative. This being the case, consideration of a measure of interest along with the more customary employment of some measure of academic aptitude could be hoped to enhance prediction of scholastic success. Further, selection only on the basis of ability to complete the curriculum is a short-sighted goal for administrators, especially in professional curricula such as Veterinary Medicine. They might well be equally concerned about choosing those students who …

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Studies In Intolerance Of Ambiguity, Ii: The Effects Of "Set" On The Decision-Location Test, Eugene E. Levitt Jan 1954

Studies In Intolerance Of Ambiguity, Ii: The Effects Of "Set" On The Decision-Location Test, Eugene E. Levitt

Proceedings of the Iowa Academy of Science

Recent interest among personality theorists has centered around the proposed variable tolerance-intolerance of ambiguity. Tolerance-intolerance of ambiguity or simply intolerance of ambiguity as it is commonly called, was put forth by Frenkel-Brunswik as the unifying concept of the syndrome of the so-called authoritarian personality (Frenkel-Brunswik, 19+9). According to Frenkel-Brunswik, the individual who is intolerant of ambiguity tends to use "black-white" solutions of problems, both cognitive and interpersonal, and to subdivide the phenomena he encounters into strict categories and dichotomies rather than to view them as continua. He has a tendency to avoid ambiguous and unstructured situations, but upon finding himself …

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A Comparison Of Absolute Overlearning On The Retention Of Fast And Slow Learners, Albert R. Rustebakke, Robert Kreider, Charles F. Haner Jan 1954

A Comparison Of Absolute Overlearning On The Retention Of Fast And Slow Learners, Albert R. Rustebakke, Robert Kreider, Charles F. Haner

Proceedings of the Iowa Academy of Science

Various studies on the relation of speed of learning to retention have been reported (2) (3) (4). Many such studies are subject to the criticism that the degree of learning of fast and slow learners was not equated. Gillette (1), using the method of "adjusted learning", found that fast learners retained more than slow learners as measured by both recall and relearning. Her study has set the pattern for subsequent investigation. A question may be raised, however, as to whether the degree of learning is actually equated by the method of adjusted learning. The acquisition curve for the fast learner …

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Analysis Of Automobile Accident Trends Of Temporary Nature, Joseph N. Stone Jan 1954

Analysis Of Automobile Accident Trends Of Temporary Nature, Joseph N. Stone

Proceedings of the Iowa Academy of Science

This study is an attempt to gather statistics relative to the accident situation in Iowa for the month of July, 1953, in order to compare these with other months and other years and to ascertain, if possible, any factors which may have been introduced to account for the unusually large toll. It would be advisable to make comparisons on the basis of numbers and trends but this is beyond the scope of the present study. Some basic facts will be reviewed inferences that may be warranted which may help reduce accidents or at least contribute to clearer thinking in accident …

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Iowa State Teachers College Schedule Of Classes, Fall 1953, Iowa State Teachers College Oct 1953

Iowa State Teachers College Schedule Of Classes, Fall 1953, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

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The Alumnus, V37n3, September 1953, Iowa State Teachers College Sep 1953

The Alumnus, V37n3, September 1953, Iowa State Teachers College

The Alumnus

Inside This Issue:
-- New Alumni Director
-- 'Protecting Our Schools' is Theme for Lively Sessions at PR Workshop
-- Homecoming Set for Weekend of Oct. 31
-- Name New Associate Dean, Librarian
-- See You at ISEA Convention!
-- News Briefs
-- Staffers Assist in Publication of Series Dealing with Atomic Energy Education
-- Alumni Reunion Draws 252 to Campus
-- Keeping up With Alumni
-- Marriages
-- Births
-- Deaths
-- Mail Box

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Iowa State Teachers College Schedule Of Classes, Summer 1953, Iowa State Teachers College Jul 1953

Iowa State Teachers College Schedule Of Classes, Summer 1953, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

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The Alumnus, V37n2, May 1953, Iowa State Teachers College May 1953

The Alumnus, V37n2, May 1953, Iowa State Teachers College

The Alumnus

Inside This Issue:
-- 70th Annual Spring Reunion May 31
-- Investigation at T.C. Explained
-- Issues Statement on Investigation
-- Statement from A.A.U.P.
-- Emeritus Professor Pioneered Study in Electron Theory
-- Chicago Alumni Meet at Palmer House
-- Alumnus of '05 Writes Reminiscent "Ode" on the Last Rites for Major Dinwiddie
-- PMS & T at the I.S.N.S.*
-- Panther Sports Parade
-- Keeping up With Alumni
-- Marriages
-- Births
-- Deaths
-- Mail Box
-- Friends in Service

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The Sixty-Fifth Session Of The Iowa Academy Of Science And The Twentieth Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1953, Iowa Academy Of Science Apr 1953

The Sixty-Fifth Session Of The Iowa Academy Of Science And The Twentieth Convention Of The Junior Academy Of Science Of Iowa, April 17 And 18, 1953, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

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Iowa State Teachers College Schedule Of Classes, Spring 1953, Iowa State Teachers College Apr 1953

Iowa State Teachers College Schedule Of Classes, Spring 1953, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

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Training Tv Teachers, Martin F. Fritz, John A. Greenlee Jan 1953

Training Tv Teachers, Martin F. Fritz, John A. Greenlee

Proceedings of the Iowa Academy of Science

The high hope that is being placed in television as an educational medium makes it desirable that we examine the training needed to fit teachers to this medium. Many questions can be asked such as, can only certain persons teach successfully by TV? How long does it take to train a TV teacher? Is a very special kind of training necessary? What are the peculiarities of TV a teacher must recognize? In the past several years, considerable information has accumulated on how to teach by television. Most of this information is empirical but some has resulted from situations involving a …

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Iowa State Teachers College Schedule Of Classes, Winter 1952-53, Iowa State Teachers College Jan 1953

Iowa State Teachers College Schedule Of Classes, Winter 1952-53, Iowa State Teachers College

UNI Schedule of Classes

A listing and schedule of the courses being taught as well as policies and procedures concerning attending classes at the Iowa State Teachers College.

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Proceedings Of The Sixty-Fifth Meeting Of The Iowa Academy Of Science Held At Cornell College, Mt. Vernon, Iowa, April 17 And 18, 1953: Minutes Of The 1953 Meeting Jan 1953

Proceedings Of The Sixty-Fifth Meeting Of The Iowa Academy Of Science Held At Cornell College, Mt. Vernon, Iowa, April 17 And 18, 1953: Minutes Of The 1953 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

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Adaptation Of The Original Response To A Conditioned Stimulus, Willace R. Mcallister Jan 1953

Adaptation Of The Original Response To A Conditioned Stimulus, Willace R. Mcallister

Proceedings of the Iowa Academy of Science

Since the time of Pavlov, it has been a common observation that the conditioned stimulus (CS) in a classical conditioning situation is seldom, if ever, a completely neutral stimulus since, prior to learning, it usually elicits some response. However, in most conditioning studies only the change in the conditioned (learned) response has been studied, little systematic work having been conducted on the changes in the original (reflex) response to the CS. Hilgard and his students, mainly in the context of eyelid conditioning experiments (4, 5, 6), have reported some pertinent data, and there have also been some experiments, outside of …

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A Group Level Of Aspiration Technique As A Measure Of Personality Rigidity, Seymour L. Zelen, Eugene E. Levitt Jan 1953

A Group Level Of Aspiration Technique As A Measure Of Personality Rigidity, Seymour L. Zelen, Eugene E. Levitt

Proceedings of the Iowa Academy of Science

The problem of "personality rigidity" or the persistence of maladaptive behavior is becoming increasingly important in our culture. As part of a series of studies of the Preventive Psychiatry Project of the Iowa Child Welfare Research Station concerning this variable, it was decided to develop a group level of aspiration technique which would provide an operational measure of this concept. Inherent in such a technique is the opportunity for the subject to make numerous shifts of his goal level. The capacity to change goals in the light of new experience is an integral aspect of flexibility, and conversely an inability …

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Response Defined Anxiety And Mmpi Variables, Harold P. Bechtoldt Jan 1953

Response Defined Anxiety And Mmpi Variables, Harold P. Bechtoldt

Proceedings of the Iowa Academy of Science

The manifest anxiety scale recently constructed by Janet Taylor (7) is one of a few self-rating questionnaires to exhibit significant relations with non-verbal behaviors in a variety of controlled laboratory situations. In general, the relations obtained with the A-scale, as it will be referred to, were consistent with predictions made in terms of a theoretical construct of drive defined in response terms as covariant with A-scale scores. In view of the rarity of such sets of relations, further investigation of the A-scale was indicated. An explanation of the source of the successful predictions might be found, first, in the uniqueness …

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Motor Learning In College Students And Mental Defectives, Robert F. Boldt Jan 1953

Motor Learning In College Students And Mental Defectives, Robert F. Boldt

Proceedings of the Iowa Academy of Science

One criticism of modern behavior theory is that it has not been tested over a wide range of human differences. Without experimental evidence, one cannot be sure that manipulations which produce effects observable in college students, for example, will produce similar effects over a wide range of human differences. However, theories are often tested on college students. Consequently, there is a need for evidence that effects observed in the performance of college students may be observed in other groups. The main purpose of the present study is to test whether certain experimental variables produce similar effects over two individual difference …

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Identification And Measurement Of The Arithmetical Concepts And Abilities Of Pre-School And Primary Grade School Children, Thomas E. Hannum Jan 1953

Identification And Measurement Of The Arithmetical Concepts And Abilities Of Pre-School And Primary Grade School Children, Thomas E. Hannum

Proceedings of the Iowa Academy of Science

A recent trend in elementary education has been the development of readiness programs. Reading readiness programs have proved their value and have been widely accepted by most educators. Programs of readiness for arithmetic are considered to be similarly important, but are developing more slowly. An arithmetic readiness program requires some method of measuring a child's level of competence in numerical skills and abilities prior to the introduction of teaching arithmetic. No satisfactory instrument has been constructed and standardized for use with children varying from the pre-school to the second-grade level. The primary purpose of this investigation was to construct and …

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Age And Sex Differences In Performance In Motility And Strength Tests, R. N. Kjerland Jan 1953

Age And Sex Differences In Performance In Motility And Strength Tests, R. N. Kjerland

Proceedings of the Iowa Academy of Science

Ream (7) defines motility as the fundamental capacity for speed in a simple repeated movement. As a measure of motility the tapping test has several advantages. The test is simple, objective and easily given and quickly learned. It has the advantage of motivating the observer to do his best. In a review of earlier studies, Wells (10) concludes that the performance of boys is faster than girls and that sex differences increase with age. He predicts a consistent superiority of men over women in speed of movement as so measured. These two psychometric tests are assumed to be of interest …

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The Effect Of A Shift In Time Of Deprivation Upon Performance In Instrumental Learning, Charles K. Ramond Jan 1953

The Effect Of A Shift In Time Of Deprivation Upon Performance In Instrumental Learning, Charles K. Ramond

Proceedings of the Iowa Academy of Science

Behavior has often been found to be a positive function of the strength of the hunger drive (D), where the latter was defined in terms of hours of food deprivation (Td). Attempts to interpret this relationship have been concerned with two alternatives: either Td determines only D, or Td determines, in addition to D, the amount of learning or habit strength (H) acquired. Characteristic experimental designs have been used to evaluate these alternative explanations. In one set of experiments (2, 4, 5, 8, 11, 12), after an initial period of constant drive, responses are observed in a test period during …

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A Preliminary Report Of Accident Characteristics Of Iowa Drivers, Elmer B. Siebrecht Jan 1953

A Preliminary Report Of Accident Characteristics Of Iowa Drivers, Elmer B. Siebrecht

Proceedings of the Iowa Academy of Science

By implication this is a progress report of a study of the driving population of the State of Iowa. The problem is the identification of driving and accident characteristics of motor vehicle operators with reference to such factors as age, sex, mileage driven, and time of day when most driving is done. The need for such a study becomes apparent when one notes the lack of information regarding the driving and accident patterns of motor vehicle operators at the various ages, and when one observes the current practice of generalizing from group data regarding accident involvement of specific age groups …

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New Evidence Of A Favorability Effect Upon Scores On The Taylor Manifest Anxiety Scale, Elaine Taylor, I. E. Farber, R. P. Farber Jan 1953

New Evidence Of A Favorability Effect Upon Scores On The Taylor Manifest Anxiety Scale, Elaine Taylor, I. E. Farber, R. P. Farber

Proceedings of the Iowa Academy of Science

It has been recently suggested that scores on Dr. Janet Taylor's Manifest Anxiety Scale (6) may be influenced by a favorability factor. This factor involves the social evaluation of an item by a subject and his attempt to answer the item in such a manner as to place himself in a socially favorable light. Such a response set may cause a subject to select an item, not only for its adequacy as a description of himself, but also because it may make him look well.

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Differential Effects Of Age Upon Intellectual Functions Differing In Degree Of Genetic Conditioning, D. Thomas Jan 1953

Differential Effects Of Age Upon Intellectual Functions Differing In Degree Of Genetic Conditioning, D. Thomas

Proceedings of the Iowa Academy of Science

It seems to be relatively well established by such investigators as Jones and Conrad (2), Miles and Miles (4), Lorge (3), Wechsler (5), Weisenberg, Roe and McBride (6), and Foulds and Raven (1), that age does have a differential effect upon various intellectual functions. Whereas this knowledge has already been utilized in the detection of intellectual deterioration, the etiology involved is still somewhat obscure. Various writers, such as Wechsler (5), have implied that the function which withstand the assaults of age best are habitual and informational in character and that those which show the earliest decrements involve problem solving and …

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A Study Of What 1,085 Parents Think Of Selected Areas Of Mason City Public School Education, Evan Dale Foster Jan 1953

A Study Of What 1,085 Parents Think Of Selected Areas Of Mason City Public School Education, Evan Dale Foster

Dissertations and Theses @ UNI

The public school was established to educate youth; and the state has delegated responsibility to school boards, administrators, and teachers for the accomplishment of this end. While the citizens through their representatives create school laws the local community retains many means for determining the program of its own public school. Thus it would seem highly desirable for public school personnel to know the opinions held by the parents about various parts of the school program.

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The Character Of Robinson Jeffers: A Study In “Inhumanism”, Betty Jean Evans Jan 1953

The Character Of Robinson Jeffers: A Study In “Inhumanism”, Betty Jean Evans

Dissertations and Theses @ UNI

When one reads many of the long narrative poems of Robinson Jeffers, one wonders at the characters who act out their lives against a backdrop of the contemporary California coastal region. The characters live isolated lives as ranchers, farmers, and farm women; they go about the business of eking out an existence, of cultivating their land, of caring for their livestock. Often, they commit horrible, unnatural acts and always, they or their families are involved in episodes which result in death or injury. Although these characters do not have the stature of an Oedipus or a Medea, their lives and …

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Reports: The Secretary; The Treasurer; The Editor; Committee Reports Jan 1953

Reports: The Secretary; The Treasurer; The Editor; Committee Reports

Proceedings of the Iowa Academy of Science

No abstract provided.

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A Note On Color Nomenclature, A. R. Lauer Jan 1953

A Note On Color Nomenclature, A. R. Lauer

Proceedings of the Iowa Academy of Science

Students in advanced psychology are not adequately grounded in the fundamental principles of color. This is due in part to loose terminology of color concepts, and partly to the failure of instructors to make clear the exact nature of results obtained from mixing colored pigments as compared with mixing colored lights. Even among authorities in the field there is a tendency to fit experimental data to pre-existing theories, a practice which does not help make the facts clear to a beginning student of color who reads widely. More recently Munsell (8) has developed a very excellent system of color nomenclature …

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Comparison Of Direct-Vision And Mirror-Vision Performance On A Pursuit Rotor, Don Lewis Jan 1953

Comparison Of Direct-Vision And Mirror-Vision Performance On A Pursuit Rotor, Don Lewis

Proceedings of the Iowa Academy of Science

As part of an extensive investigation of the underlying variables in complex perceptual-motor performance, 35 male subjects were given practice under usual conditions on a Koerth-type pursuit rotor, and several days later practiced on the same unit at a slower speed with mirror-vision. The speed of the rotor for conventional direct-vision performance was 60 r.p.m. and for mirror-vision was 15 r.p.m. For direct-vision, the lengths of the work and rest periods were 10 and 20 sec., respectively, and for mirror-vision, 30 and 30 sec. Thirty trials of conventional practice were given, with a two minute break after trial 15. The …

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Evaluation Of Proportions And Size Of Certain Moving Signs, Owen A. Brooks Jan 1953

Evaluation Of Proportions And Size Of Certain Moving Signs, Owen A. Brooks

Proceedings of the Iowa Academy of Science

The "golden section" has generally been accepted as the most preferred height-to-width ratio that can be obtained in a rectangle. Little is known of the origin of this acceptance. There has been a limited amount of experimental work done to either uphold or refute the position held. Rendahl (2) failed to confirm the acceptance of the "golden section" by most of her subjects. On the other hand, both Shipley (3) and Thompson (4) have upheld the acceptance. Most former studies dealing with preference of proportions have been concerned with stationary signs. The present investigation has to do with moving signs. …

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