The results of an investigation into some special cases of the general "orthomax" formulation are presented. In particular, the effects of manipulating a parameter in this formulation on various aspects of factor solutions are identified through the use of four sets of data, varying considerably in size, and reliability and factorial complexity of…

This paper reports on a 2-year field investigation of the frequency and content of interactions between curriculum consultants and elementary school teachers involved in implementing an inquiry-oriented curriculum. The report includes data generated by 45 consultants and 600 teachers in 53 diverse schools. The types of questions teachers ask…

The seventh in a series of eight reports on mental retardation in a Canadian province provided basic psychometric, social and conceptual maturity data of the study and outlined preliminary analytical tables designed to validate research questions. The report was explained to represent a transition from theoretical discussion of mental retardation…

The data in this report are the result of the first in a series of five proposed inventories of licensed practical nurses. The study revealed a total of 343,635 practical nurses holding licenses to practice at the time of the study. About 74 percent reported they were employed in nursing, 20 percent indicated they were not employed in nursing, and…

This is the third in a series of analytical reports on findings in 1968-69 of the Urban Employment Survey. The Survey was designed to develop information on employment, unemployment, and work-related problems of the working-age population residing in the major poverty areas of several large cities. The present report focuses on the labor market…

This report was prepared jointly by the Bureau of the Census and the Bureau of Labor Statistics. It is one of a series about the social and economic conditions of Negroes in the United States, and brings together the statistics available for the period between 1960 and 1970. During the 1960's Negroes continued to make substantial economic and…

This study of lunch services in public and private elementary and secondary schools is one of a group evaluating selected aspects of public food assistance programs. During a survey in March 1968, noontime food services were provided in about 75 percent of the nation's schools, serving about 80 percent of all pupils enrolled. Results of the survey…

The present volume is one of a series intended to provide a comparative view of the education systems of member countries of the Organisation for Economic Cooperation and Development (OECD). Published in response to a need for a conversion key so that national data could be readily converted on the basis of a standardized system, its purpose is to…

The present volume is one of a series intended to provide a comparative view of the education systems of member countries of the Organisation for Economic Cooperation and Development (OECD). Published in response to a need for a conversation key so that national data could be readily converted on the basis of a standardized system, its purpose is…

This document reports on statistics regarding the need for day care facilities for children under the age of six. It also gives suggestions for making better use of local day care resources. Statistics show that: (1) There are more than 5 million children in this country under the age of 6 whose mothers work; (2) There are licensed day care…

This survey-type study had the following purposes: (1) to consider the sheep and Extension sheep situation and trends in the nation; (2) to gather information regarding titles and duties of sheep specialists; (3) to collect copies of available job descriptions; and (4) to identify some reasons why sheep numbers have continued to decline.…

This research was conducted to provide a background for writing a plan for a state-wide day-care system. The findings of the study are presented. Existing statistical resources in Alabama and the 1970 federal census data were used in preparing this report. In addition, empirical data was gathered throughout Alabama to project the state-wide need…

"Kerala's Pioneering Experiment in Massive Vasectomy Camps," the principal article in this monthly publication of the Population Council, is a detailed research report on the success of a massive vasectomy camp conducted at Cochin, the capital city of the Ernakulam District of Kerala State, India. The second article, "The Gujarat…

In the principal article, "A Comparison of Two Large-Scale Studies of the Use-Effectiveness of IUDs," the results of evaluation of loop D use in 11 public health and hospital clinics (California Cooperative Statistical Program for Evaluation of Intrauterine Devices) are compared with results from the Cooperative Statistical Program for Evaluation…

This paper concerns situations in which a p x p covariance matrix is a function of an unknown q x 1 parameter vector y-sub-o. Notation is defined in the second section, and some algebraic results used in subsequent sections are given. Section 3 deals with asymptotic properties of generalized least squares (G.L.S.) estimators of y-sub-o. Section 4…