Sentences with phrase «lack systematic data»

We lack systematic data on the amount of time students nationwide spend taking standardized tests, nor do we know how much would be optimal.

Not exact matches

But today, consumer angst seems tangible and rising, and attention is turning to the corporate - governance structures — or lack thereof — that permitted what many consider to be the systematic abuse of society's data and trust.

This appears to be due to a lack of systematic monitoring of prescribing data in these settings.

Trenberth says that the climate monitoring principles set by the Global Climate Observing System (GCOS), the lead international organization for oversight of systematic climate observations, lack provisions for verifying accuracy and confirming or refuting «surprising» climate - change results based on satellite data.

The key challenge facing empirical study of how school choice affects information acquisition has been a lack of systematic data.

Answer: One of the things that we discovered when we got our collaborative team together, we reviewed our results and our data and our interventions, is that we lacked a systematic system for students who had the most needs academically from [Kindergarten] through 12th grade in our system.

General Introduction Two Main Goals Identifying Patterns in Time Series Data Systematic pattern and random noise Two general aspects of time series patterns Trend Analysis Analysis of Seasonality ARIMA (Box & Jenkins) and Autocorrelations General Introduction Two Common Processes ARIMA Methodology Identification Phase Parameter Estimation Evaluation of the Model Interrupted Time Series Exponential Smoothing General Introduction Simple Exponential Smoothing Choosing the Best Value for Parameter a (alpha) Indices of Lack of Fit (Error) Seasonal and Non-seasonal Models With or Without Trend Seasonal Decomposition (Census I) General Introduction Computations X-11 Census method II seasonal adjustment Seasonal Adjustment: Basic Ideas and Terms The Census II Method Results Tables Computed by the X-11 Method Specific Description of all Results Tables Computed by the X-11 Method Distributed Lags Analysis General Purpose General Model Almon Distributed Lag Single Spectrum (Fourier) Analysis Cross-spectrum Analysis General Introduction Basic Notation and Principles Results for Each Variable The Cross-periodogram, Cross-density, Quadrature - density, and Cross-amplitude Squared Coherency, Gain, and Phase Shift How the Example Data were Created Spectrum Analysis — Basic Notations and Principles Frequency and Period The General Structural Model A Simple Example Periodogram The Problem of Leakage Padding the Time Series Tapering Data Windows and Spectral Density Estimates Preparing the Data for Analysis Results when no Periodicity in the Series Exists Fast Fourier Transformations General Introduction Computation of FFT in Time Series

There is currently a lack of systematic data regarding the number of adults utilising Australian mental health services who are also parents of dependent children.