Concept Application of Concept in Scenario Reference to Concept in Reading
Levels of measurement.
There are four different levels of measurement: nominal, ordinal, interval and ratio. These different levels of measurement are useful in business.
Nominal level data is data that can only be classified...
practical approach to problems. What position would you take and why?
With so many ways to approach a question or a situation I think sometimes one may over think how to address certain situations or scenarios without theory. Then again I wonder why are some answers given not right if I applied a certain...
tool that may assist the teacher for decision-making in grouping students in classes, to measure each individual student’s understanding and knowledge, and to some extent it could measure the effectiveness of instruction and learning. In order to attain a concrete result from the measurement of one’s...
Homework pg 286 1-6
Measurement is the process of assigning numbers or labels to persons, objects, or events in accordance with specific rules for representing quantities or qualities of attributes.
The 4 types of measurement scales are:
-Nominal: Uses numbers...
“Basic concepts of educational measurement and assessment.”
Measurement, Evaluation and Assessment, this are the three important things that a learner undergoes for the facilitator to determine a valid and reliable result of achievement. But what is the difference of the three? Can we really...
repeated observation and/or measurements taken under identical circumstances will |
|first-hand data |yield the same results. |
When discussing the accuracy of measurements a dictionary definition such...
of data to rule out theories that are not valid. “Scientific reporting is unbiased and objective and requires clear communication of concepts” (Zechmeister, Zechmeister & Shaughnessy, 2001). This method should make psychological measurementsvalid and reliable.
A few challenges that psychologist...
Biology preparation notes for exam
Potential Inaccurate measurements:
egg cube cutter not accurate cubes meaning different volumes of cubes (not all 5mm by 5mm)
Temperature of water in the beaker wasn’t stable due to the external environment.
The 5ml of HCL was not accurate with the...
behavioral health. The use of scientific methods to test and observe individuals assists scientists and psychologists in discovering truthful and reliable information about phenomena. Science is moral, social-cultural, and historical. The scientific process begins with researching a theory and the...
Criterions of Measurement
Why do we need criterions of measurement?
What problems may this application includes?
Do we need statistic quality criteria?
Table of Contents
Chapter 1 - Introduction 4
Chapter 2 – Criterions of Measurements 5
an instrument is not reliable over time, it cannot be valid, as results can vary depending upon when it is administered. An instrument can be neither reliable nor valid, reliable and not valid or both reliable and valid. However, an instrument must be reliable in order to be valid” (Cooper, 2011). Making...
Any variables that could also affect the dependent variable. Confounding variables should be controlled in a fair test.
(measurements, singular datum)
The variable you measure, to see how it is affected by the independent variable.
Quantitative or Numeric...
“observations” is taken to include measurements.
Validity is the measure of confidence that can be placed in a
conclusion. After deciding upon a dependant variable to vary within
the experiment, the method of measurement should also be known, the
measurement taken should be valid e.g. the volume of oxygen...
define what reliability of measurement is. A measurement is reliable to the extent that it provides a consistent set of scores to represent an attribute. In the majority of the case perfect reliability is never achieved because of the errors that the distinct types of measurement have. If we test the same...
endurance as you will only be able to do this test depending on your aerobic endurance. It may be unreliable in some cases, as it has to be done under strict conditions otherwise the individual whom is being tested may get a higher score than he should do. There are published VO2max score equivalents for...
and subject to the perceptions of the administrator such as is found in the scale of mood. Depending on what the child is feeling at the moment; this may influence the
findings of the child depression inventory. The outcome can be different daily depending on the environment and the age of the child...
reliability and validity can be examined and achieved over the entire selection process.
Validity in general is “the accuracy in measurement and it must measure what it purports to measure” (Cooper, Robertson and Tinline, 2003, pp 49)
Different types of validity can be considered...
probably something wrong with my measurement tools and my findings aren’t very useful. For example, if you wanted to measure your weight and the scales that you used varied 5-20 pounds everything time you stepped on it (within the same day) this scale would not be reliable and therefore not useful if you...
important in quantitative research and may refer to:
The statistical reliability of a set of data
The experimental reliability of an experiment
Data reliability, a property of some disk arrays in computer storage
Reliability engineering ensures a system will be reliable when operated in a specified manner
warm up. Advantages of doing this test is that it’s an easy and quick test to perform, however disadvantages are that cost of some of the equipment may be an issue such as a cd player.
Muscular Strength –ability of a muscle to exert a maximum force though a given range of motion or single point...