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Officers, Past Presidents, And Members, Iowa Academy Of Science Jan 1952

Officers, Past Presidents, And Members, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

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The Effect Of Initial Massing Of Practice On The Transfer Task In A Proactive Interference Situation, Abram M. Barch Jan 1952

The Effect Of Initial Massing Of Practice On The Transfer Task In A Proactive Interference Situation, Abram M. Barch

Proceedings of the Iowa Academy of Science

Virtually all motor learning studies have shown spaced practice to be superior to massed practice. Most of the apparent exceptions, such as the work of Cook, involve tasks in which symbolic responses play a dominant role - such tasks as spider mazes, punch board mazes, mechanical puzzles, etc. (1, 2). The few remaining exceptions are studies in which the term "spaced practice" is a misnomer. That is, the performance of the so-called "spaced" groups was affected as much by the inhibitory effects of work decrement as was the performance of the massed practice groups (3).

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A Composite Driving Inventory [Abstract], A. R. Lauer Jan 1952

A Composite Driving Inventory [Abstract], A. R. Lauer

Proceedings of the Iowa Academy of Science

Previous studies have shown a number of factors to be moderately correlated with accident records and other criterion of driving performance. Among these are knowledge of driving, attitudes towards traffic, experience and certain personality characteristics. It is hypothesized that a composite of these categories using selected items should raise the predictive value of such an instrument. Consequently a type of inventory has been assembled from several selected categories of known reliability and validity into a composite form of 163 items covering certain aspects of personal history, experience, preferences and attitudes. Methods of scoring will he presented along with certain preliminary …

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Personality Changes In College Women During Four Years Of College Experience, Alice L. Palubinskas Jan 1952

Personality Changes In College Women During Four Years Of College Experience, Alice L. Palubinskas

Proceedings of the Iowa Academy of Science

Changes in the personality test scores of a group of college women over an interval of approximately four years were investigated. During the fall quarter of 1947 three hundred forty-four freshmen women in the Home Economics Division of Iowa State College were given Darley and McNamara's Minnesota Personality Scale. During the winter of 1951 ninety-one of these women were retested with the same personality scale. The retested group included students who were still enrolled at Iowa State College and who submitted to the retesting.

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Performance On A Motor Task Under Differential Amounts Of Physical Induced Tension, Howard H. Mcfann Jan 1952

Performance On A Motor Task Under Differential Amounts Of Physical Induced Tension, Howard H. Mcfann

Proceedings of the Iowa Academy of Science

The present study was concerned with the influence of different amounts of experimentally induced muscular tension on performance of a motor task. Following the pioneer investigations by Bills (1), a number of studies utilizing tasks under various techniques of inducing tension have attempted to test his general conclusion that tension facilitates performance. McGeoch (9) and Courts (5) present excellent summaries of the studies concerned and, in general, the evidence cited agrees with Stauffacher (11) who on the basis of his own work and early studies, stated the hypothesis that there is an amount of tension which is optimal for learning …

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Number Of Responses And Rate Of Responding To A Voluntary Rest Pause As A Function Of Response Effortfulness, Robert F. Boldt, Douglas S. Ellis Jan 1952

Number Of Responses And Rate Of Responding To A Voluntary Rest Pause As A Function Of Response Effortfulness, Robert F. Boldt, Douglas S. Ellis

Proceedings of the Iowa Academy of Science

Recent studies by Eckstrand (1) and Ellis, Montgomery, and Underwood (2) have been concerned with the effects of effortfulness on performance and reminiscence. Eckstrand varied the amount of spring tension against which the stylus had to be depressed in the pursuit rotor task, while Ellis, Montgomery, and Underwood varied the work-surface height of a block-turning task. In both studies, the effortful manipulation failed to depress performance.

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Reports: The Secretary; The Treasurer; The Editor; Committee Reports Jan 1952

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

Proceedings of the Iowa Academy of Science

No abstract provided.

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Proceedings Of The Sixty-Fourth Meeting Of The Iowa Academy Of Science Held At Coe College, Cedar Rapids, Iowa, April 18 And 19, 1952: Minutes Of The 1952 Meeting Jan 1952

Proceedings Of The Sixty-Fourth Meeting Of The Iowa Academy Of Science Held At Coe College, Cedar Rapids, Iowa, April 18 And 19, 1952: Minutes Of The 1952 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

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Science Talent Searches, F. E. Brown Jan 1952

Science Talent Searches, F. E. Brown

Proceedings of the Iowa Academy of Science

In 1948 the American Association for the Advancement of Science asked the cooperating academies of science in the several states to encourage larger numbers of qualified students to major in science. Seeking youth for special important service is one of the oldest activities of organized society. The Incas found beautiful maidens whose sacrifice appeased an angry god. The Babylonians trained even their abler captives such as Daniel and his friends for administrative positions. Schools have been founded to train, without charge or for small fees, preachers, lawyers, physicians and teachers as need for such training was evident.

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Behavior Associated With Age And Audiogenic Seizures In An Inbred Strain Of Mice, Wayne C. Bruce Jan 1952

Behavior Associated With Age And Audiogenic Seizures In An Inbred Strain Of Mice, Wayne C. Bruce

Proceedings of the Iowa Academy of Science

Behavior disorders or so-called "experimental neuroses" have been observed by many investigators in a variety of species. Finger1 indicates that convulsive behavior has been studied experimentally in such mammals as the cat, dog, mouse, rabbit and pig. Hall and Martin2 refer to behavior disorders in the chimpanzee and rat. So far as is known only rats and mice have been found susceptible to audiogenic seizures. It has been found that abnormal behavior may be elicited by a variety of stimuli such as conflict, sound, electric shock, drugs, and ·dietary deficiency. Although the literature appears to indicate that a …

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The Effects Of A Thirty Year Age Increment Upon Individual And Trait Differences In Intelligence, W. A. Owens, Richard R. Clampitt Jan 1952

The Effects Of A Thirty Year Age Increment Upon Individual And Trait Differences In Intelligence, W. A. Owens, Richard R. Clampitt

Proceedings of the Iowa Academy of Science

As implied, the problem of the present investigation was to estimate the effects of a thirty-year age increment upon individual and trait differences in eight measurable mental functions.

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The Validity Of A Pencil And Paper Version Of The O'Connor Block Test [Abstract], J. J. Phillips, M. C. Green, R. N. Kjerland Jan 1952

The Validity Of A Pencil And Paper Version Of The O'Connor Block Test [Abstract], J. J. Phillips, M. C. Green, R. N. Kjerland

Proceedings of the Iowa Academy of Science

The senior author has previously shown that the O'Connor Block Test requires at least four time-limit trials of two minutes each to obtain a reliability of .80. A total of six trials are required to bring the reliability up to .85. If the number of subjects to be tested is large this procedure requires a large amount of the examiner's time and somewhat limits the usefulness of the test.

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"Verbal Factor" And "Number Factor"A Study Of Two Tests, John E. Williams, C. D'A. Gerken Jan 1952

"Verbal Factor" And "Number Factor"A Study Of Two Tests, John E. Williams, C. D'A. Gerken

Proceedings of the Iowa Academy of Science

The psychologist working as a counselor in a student personnel office has come to depend upon psvchometric data to sharpen the reliability and validity of his judgments. Although he is cautious about trusting test labels, and well aware of the unwritten caveat accompanying each test manual, every once in a while the counselor may be brought up short by the summation effect of discrepancies he notices in day-to-day work with test data. The present study had its origin in just this fashion. It grew out of attempts of counselors to extract the maximum amount of meaningful information from test data.

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Iowa State Teachers College Schedule Of Classes, Fall 1951, Iowa State Teachers College Oct 1951

Iowa State Teachers College Schedule Of Classes, Fall 1951, 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, V35n3, September 1951, Iowa State Teachers College Sep 1951

The Alumnus, V35n3, September 1951, Iowa State Teachers College

The Alumnus

Inside This Issue:
-- 1876-1951
-- How Homecoming Got Its Start
-- Alumni, Townsfolk, Students...Plan Three-Day Homecoming Celebration
-- News About the Faculty
-- Plan Five Celebrations for 75th Anniversary
-- Campus Conferences
-- School Public Relations Workshop
-- What About...Teaching Overseas
-- Raymond Schlicher Appointed Placement Director
-- E.W. Goetch Takes New Job
-- New Officers
-- Two Presented 60-Year Medals at Spring Reunion
-- Panther Sports Parade
-- Keeping Up with Alumni
-- A.C. Fullers...on their golden wedding day...
-- Marriages
-- Births
-- Deaths
-- Five Hundred Graduate at 75th Commencement

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The Sixty-Third Session Of The Iowa Academy Of Science And The Eighteenth Convention Of The Junior Academy Of Science Of Iowa, April 20 And 21, 1951, Iowa Academy Of Science Apr 1951

The Sixty-Third Session Of The Iowa Academy Of Science And The Eighteenth Convention Of The Junior Academy Of Science Of Iowa, April 20 And 21, 1951, Iowa Academy Of Science

Iowa Academy of Science Documents

No abstract provided.

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Making Accident Statistics More Meaningful, Pearl W. Mcmurray, A. R. Lauer Jan 1951

Making Accident Statistics More Meaningful, Pearl W. Mcmurray, A. R. Lauer

Proceedings of the Iowa Academy of Science

With the improvement in driver licensing and highway policing systems throughout the country there has arisen the need for better reporting and analysis of accidents and accident trends. Many states have inaugurated standard IBM equipment and follow a more or less uniform system of recording and punching accident data on cards for machine analysis. In most respects the trends in this development have been very desirable but standardization is sometimes a virtue which may occasionally boomerang. After a system is once established it takes a great deal of effort to make a change and changes are frequently desirable. Standardization may …

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An Analysis Of Reading Improvement, Lewis R. Vavra Jan 1951

An Analysis Of Reading Improvement, Lewis R. Vavra

Proceedings of the Iowa Academy of Science

It has been established by different investigators that a positive correlation exists between intelligence and reading speed. Humber (1944) found a correlation of +.76 between reading rate and ACE scores of University of Minnesota students. A study by Anderson and Dearborn (1941) shows that reading ability and college achievement are often closely related. Data were available from several classes of a reading improvement course, and it was considered worthwhile to analyze the data to ascertain which decile groups were profiting most by training. The fundamental hypothesis set up for testing in this study may be stated as follows: There is …

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An Empirical Study Of The Effect Of Normalizing Data [Abstract], C. C. Collins, A. R. Lauer Jan 1951

An Empirical Study Of The Effect Of Normalizing Data [Abstract], C. C. Collins, A. R. Lauer

Proceedings of the Iowa Academy of Science

The problem of normalization of data is frequently discussed in the literature but few studies have been made to determine the actual effect produced when normalized and non-normalized data are compared. In this study two types of distributions were studied in which correlations are made between certain data with and without correction for skewness and kurtosis. The correlations, plots and curves of the material, and the changes created will be presented and discussed. It would seem that in most cases the benefits of normalizing data are hardly worth while since curvilinearity and breaks in data induce sources of error which …

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Age And Sex Difference In Performance In The O'Connor Blocks, R. N. Kjerland Jan 1951

Age And Sex Difference In Performance In The O'Connor Blocks, R. N. Kjerland

Proceedings of the Iowa Academy of Science

Kean and O'Connor (1927) reported the use of the O'Connor Blocks as a measure of mechanical aptitude. A study of the data indicated that superior performance was associated with a type of analysis characteristic of engineers and mechanics. In recent years the test has been used to some extent in the field of driver training and driver aptitude measurement. A study reported by Miller and Lauer (1946) with a group consisting largely of Oriental students gave low positive correlation with driving performance. The criterion used was not as reliable as the experimenters desired.

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Some Social Correlates Of Intellectual Changes, Dale Ortmeyer, William A. Owens Jr. Jan 1951

Some Social Correlates Of Intellectual Changes, Dale Ortmeyer, William A. Owens Jr.

Proceedings of the Iowa Academy of Science

As a result of considerable psychological investigation in the field of individual differences, Tyler (3) and others have stated that social factors, such as amount of education, are related to mental abilities. This statement suggested the possibility that social factors may be related to changes in mental abilities over a chronological age span. The knowledge of social correlates, if any, of the changes in mental abilities is an important preliminary step for further research designed to determine causation. Due to the lack of information in the literature concerning this relationship, it was believed worthwhile to conduct a longitudinal study directly …

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Work Decrements In The Performance Of A Pursuit Task Arising From Relatively Short Periods Of Massed Practice, Abram Barch Jan 1951

Work Decrements In The Performance Of A Pursuit Task Arising From Relatively Short Periods Of Massed Practice, Abram Barch

Proceedings of the Iowa Academy of Science

In a series of articles beginning in 1948, Kimble attempted to extend two constructs of the Hullian system to the realm of motor learning. These constructs were reactive inhibition (IR) and conditioned inhibition (SIR). Definition and Measurement. Reactive inhibition was conceived of as a response-produced need state, a need to stop responding, which accompanies all behavior and which dissipates with rest. The effect of reactive inhibition on the learning process is to reduce the work-output level of the organism and thus to obscure the actual strength of the habit. Kimble postulated that the accumulation of a …

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The Scotometer - A Dark-Tunnel Apparatus For Studying Night Vision Of Drivers, Harold I. Stalder, Donald A. Hoppe, A. R. Lauer Jan 1951

The Scotometer - A Dark-Tunnel Apparatus For Studying Night Vision Of Drivers, Harold I. Stalder, Donald A. Hoppe, A. R. Lauer

Proceedings of the Iowa Academy of Science

Lauer and Silver (1941) described a special dark room for studying acuity and visual discrimination under low levels of illumination. The length of the room was about 20 feet, thus precluding certain measurements where greater distances were required. The test objects were also stationary allowing only for measurements being made at a fixed distance. In connection with a recent study (1951) on perception of changes in relative distance and in variations thereof, it was necessary to construct a device which would not only give a greater distance potential, but which would allow for variations in speed of approach or recession …

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Iowa State Teachers College Schedule Of Classes, Winter 1951, Iowa State Teachers College Jan 1951

Iowa State Teachers College Schedule Of Classes, Winter 1951, 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-Third Meeting Of The Iowa Academy Of Science Held At Wartburg College, Waverly, Iowa, April 20 And 21, 1951: Minutes Of The 1951 Meeting Jan 1951

Proceedings Of The Sixty-Third Meeting Of The Iowa Academy Of Science Held At Wartburg College, Waverly, Iowa, April 20 And 21, 1951: Minutes Of The 1951 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

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Officers, Committees, Past Presidents, And Members, Iowa Academy Of Science Jan 1951

Officers, Committees, Past Presidents, And Members, Iowa Academy Of Science

Proceedings of the Iowa Academy of Science

No abstract provided.

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Papers Presented At The 1951 Meeting Jan 1951

Papers Presented At The 1951 Meeting

Proceedings of the Iowa Academy of Science

No abstract provided.

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Statements Of Cynicism Rated By College Students, Martin F. Fritz Jan 1951

Statements Of Cynicism Rated By College Students, Martin F. Fritz

Proceedings of the Iowa Academy of Science

The investigation of cynicism by means of testing procedures has been described before the Psychology Section of the Iowa Academy of Science at previous meetings (see references). This paper is a report of a further study of cynicism using the sixty-five items of the short-form of the so-called Practical Policy Test (3). The problem was to determine how strongly cynical these items would be considered to be when the subject does not think of them as applying to himself but attempts to evaluate them "objectively". In other words, what statements are considered by college students as expressing the most intense …

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Some Components Of Mechanical Composition, Gilbert E. Miller Jan 1951

Some Components Of Mechanical Composition, Gilbert E. Miller

Proceedings of the Iowa Academy of Science

In the search for unitary mental traits it appears that the answer may not be finite. In view of this conclusion on the part of several investigators (2), the writer suggests the probability that psychological tests intended to measure ability in a specified area may contain a number of psychological components. As mechanical comprehension is one of the important areas of psychological testing, the writer believes that determination of the components of this area would be of great value.

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Periodicities In Motor Performance As A Function Of Work-Surface Height, Douglas S. Ellis Jan 1951

Periodicities In Motor Performance As A Function Of Work-Surface Height, Douglas S. Ellis

Proceedings of the Iowa Academy of Science

Although motor learning is generally assumed to be an orderly process, the observed performance curves of individuals and groups of individuals are usually rather irregular with observed points falling both above and below the general trend of the curve. This conflict between theory and observation has typically been resolved by attributing such variations to the chance operation of uncontrolled variables. However, a recent theory describes a mechanism by which such variations might occur. The present paper extends this theory to the problem of performance variability, and presents an analysis of performance curves obtained under two conditions of work-surface height to …

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