ACHIEVEMENT TEST RELIABILITY AS A FUNCTION OF PUPIL-RESPONSE PROCEDURES

Muller, Calhoun, and Orling (1972) conclude that test reliability is dependent on the type of answer document used by elementary pupils. The present study was designed in part to assess the differential effect of two pupil response procedures (answering directly in the test booklet versus on a separate answer folder) on Metropolitan Achievement Tests scores of grades 3 and 4 pupils.
Over 4000 pupils from nine school systems took the Metropolitan , half responding in their booklets and half using answer folders. The two groups were matched by grade in general scholastic aptitude.
Although the separate answer folder group received lower scores than did the group responding in the test booklets, the score reliabilities did not differ significantly for any test. Additionally, these reliabilities did not differ significantly from comparable Metropolitan normative reliabilities. For survey achievement tests such as Metropolitan , test reliability would not appear to depend on pupil response mode.     

INCREASES IN TEST SCORES AS A FUNCTION OF MATERIAL REWARDS

In this study 81 experimental and 79 control subjects (randomly assigned to treatments) took Form A of the Nelson Reading Test, twice, with a four week interval between test administrations. Instructions for the retest varied for the E and C groups. The latter group was told that the test was readministered for purposes of assessing improvement. The E subjects were informed that by improving their previous score they would be eligible for winning a prize (candy bars, university sweaters, radios). Analysis of covariance indicated that the effect of the awards was significant (p < .01) in terms of number of items attempted and in terms of items correct. The adjusted mean increase for the E subjects was three months. The authors concluded that, if the terms of an actual performance contract would be applied to their results, they were to realize approximately $3,000 profit on a $75 investment.     

EFFICIENCY OF LINEAR EQUATING AS A FUNCTION OF THE LENGTH OF THE ANCHOR TEST

One of the most widely used methods for equating multiple parallel forms of a test is to incorporate a common set of anchor items in all its operational forms. Under appropriate assumptions it is possible to derive a linear equation for converting raw scores from one operational form to the others. The present note points out that the single most important determinant of the efficiency of the equating process is the magnitude of the correlation between the anchor test and the unique components of each form. It is suggested to use some monotonic function of this correlation as a measure of the equating efficiency, and a simple model relating the relative length of the anchor test and the test reliability to this measure of efficiency is presented.     

THE EFFECT OF ANSWER SHEET FORMAT ON TEST PERFORMANCE BY CULTURALLY DISADVANTAGED FOURTH GRADE ELEMENTARY SCHOOL PUPILS

Answer sheet format was shown to have no effect on the test performance of culturally deprived fourth grade elementary school students.     

DIELECTRIC STUDIES OF UREASE AS A FUNCTION OF HYDRATION

The steady-state electrical conductivity,as well as the dielectric propertiesbetween 2×10~(-4)Hz and 100 kHz,and at 1 GHz,are reported for urease compressed powdersamples of low hydration.The results show that the large,low frequency dielectricdispersion,known as α-dispersion,is due to the build-up of a space charge of protons atthe sample-electrode interfaces.A smaller dispersion,appearing at higher frequencies,isconcluded to be associated with hindered motions of the peptide residues in the molecularstructure of urease.The extent of these polypeptide backbone motions is shown to bestrongly depended on the extent of enzyme hydration.This work is contributed to the de-velopment of conductimetric biosensors.     

USE OF OPTICALLY SCORED TEST ANSWER SHEETS WITH YOUNG CHILDREN

By testing a sample of 840 school children from an urban school district, the authors examined the practical limitations of the use of an optically scored answer sheet. The independent variables were grade (two through nine) and degree of instruction and practice (three levels). The dependent variable was the number of easy items (embedded within a set of ordinary test items) that were correctly answered. The easy items, which were different for the various grades, were selected because other children, comparable to those used in the experiment, were able to answer them virtually without error when answering on a test booklet rather than on the answer sheet. The findings indicated that students in grades two and three, in the fall of the year, were unable to make valid responses. Students in grades four and five seemed able to make valid responses only after receiving specific instructions and a practice session. Above grade five, students made valid responses regardless of the types of instructions they received.     

A STUDY OF SPEEDEDNESS AS A SOURCE OF TEST BIAS1

Specially constructed “speeded” and “unspeeded” forms of a Reading Comprehension test were administered to both regular center and fee-free center LSAT candidates in an effort to determine: (1) if the test was more speeded for fee-free candidates, and (2) if reducing the amount of speededness was more beneficial to fee-free candidates. Results of the analyses show: (1) the test is somewhat more speeded for fee-free candidates than for regular candidates, (2) reducing the amount of speededness produces higher scores for both regular and fee-free center candidates, and (3) reducing speededness is not significantly more beneficial (in terms of increasing the number of items answered correctly) to fee-free than to regular center candidates. Lower KR-20 reliability was observed under speeded conditions in the fee-free sample.     

COMMUNITY COLLEGE ENROLLMENT AS A FUNCTION OF ECONOMIC INDICATORS

This study investigated the ability of national economic trends to predict enrollment in community colleges. Data from government documents and source books were used in a correlational analysis to explore the relationship between the national economy and enrollment in community colleges. The results indicated that Unemployment Rate, Gross Domestic Product, Dollars Disposable Income, and Personal Consumption Expenditures are good indicators of trends in community college enrollment. The Consumer Price Index and the Average Hourly Earnings of Production Workers were not significantly correlated to Total Enrollment or to Per Capita Community College Enrollment.     

ACADEMIC PERFORMANCE AND SELF-CONCEPT AS A FUNCTION OF ACHIEVEMENT-VARIABILITY1

The relationship of achievement-variability (standard deviation of grades) to changes over time in academic achievement and self-concept of academic ability was investigated. Compared were 112 students having near average grade point averages (GPAs) but very high or very low achievement variability (AV) indices. The high AV group showed a significantly greater drop (17 less than .05) in both GPA and self-concept of academic ability over the 5-year period. There were no significant differences between the groups in intelligence scores or socio-economic status ratings.     

ABILITY FACTORS AS A FUNCTION OF ADVANTAGED AND DISADVANTAGED GROUPS

Preliminary factor analyses of predictor tests in advantaged and disadvantaged groups is recommended as a way of forming a priori expectations concerning validities of the predictors to guide both use and research. Factor analyses of Project Talent ability measures are reported for groups defined by top and bottom quartile placement in intelligence and socio-economic status. There are no important differences in results associated with differences in socio-economic status, but there are fairly numerous differences in loadings for individual measures in groups defined by level of intelligence. Most of these differences can be explained by the characteristics of the scales of measurement. For a small number of measures, however, there is evidence for differences in loadings as a function of the intellectual level of the subjects per se. These latter measures would be expected to have differential validities for similarly selected intelligence groups, but not for socio-economic groups.     

PERSONAL COUNSELING AS A FUNCTION OF THE COMMUNITY COLLEGE COUNSELING EXPERIENCE

The roles and responsibilities of community college counselors have altered over the last 40 years as a result of profound social, cultural, economic, and political changes. A compounding factor is the dramatic demographic shifts that have occurred across the United States. Although academic and career-related issues traditionally have been the cornerstones of the work of community college counselors, this too is changing. Reports of the escalating frequency and severity of mental health concerns of community college students have prompted counselors to increasingly emphasize personal counseling. This article summarizes some personal issues that counselors are now likely to encounter with community college students. Recommendations for community college counselors working with students experiencing personal difficulties are also included.     

RECALL SCORES OF OLD AND YOUNG PEOPLE AS A FUNCTION OF REGISTRATION INTERVALS

The subjects, 24 old (mean age, 69 yr) and 24 young (mean age, 19 yr) people, were given one learning trial on paired associate lists under each of four temporal conditions: (1) 3 sec study (association) interval; (2) self‐paced study interval; (3) self‐paced study interval and 4 sec registration interval; (4) self‐paced study and registration intervals. The response interval for the single recall trial was self‐paced for all conditions. The subject was instructed to use the registration interval to ensure that the association between the paired items was “fixed” in his or her mind. The recall scores of the elderly subjects but not the young subjects improved significantly as a function of the registration interval. The results suggest that with advanced age more time is required for information processing, and specifically for the registration of an association and/or its transfer from primary to secondary memory. The significant improvement of the older subjects from the paced‐study‐interval condition to the self‐paced‐study‐and‐registration‐intervals condition supports the contention that modification of conditions under which the older person is expected to perform can result in substantial performance increments.     

QUICK ESTIMATES OF THE RELATIVE EFFICIENCY OF TWO TESTS AS A FUNCTION OF ABILITY LEVEL

When comparing two tests that measure the same trait, an overall comparison is not enough. Separate comparisons should be made at different levels of the trait. A simple, practical, approximate formula is given for doing this. The adequacy of the approximation is illustrated using data comparing seven nationally known sixth-grade reading tests.