Predictive validity of a metric scale
With what instrument could the predictive validity of a metric scale (a set of questions) best be determined?
A. Cronbach's alpha
B. A correlation-coefficient
C. Fishers r-to-z test.
D. With none of the above mentioned instruments
Expected delivery within 24 Hours
On average how much difference should exist between the population mean and the sample mean for n = 4 scores randomly selected from the population?
What is the rate at which heat is being transferred from the high temperature reservoir to this heat engine? What is the upper limit on the thermal efficiency of this heat engine?
Scores on a certain test are normally distributed and a researcher wishes to estimate the mean score achieved by all students on the test. He was told that he would need a sample size of 100 to assure a 95 percent confidence interval with width=4.
Hydraulic engineers in the United States often use, as a units of volume of water, the acre-foot, defined as the volume of water that will cover 1 acre (where 1 acre = 43560 ft2) of land to a depth of 1 ft. A severe thunderstorm dumped 2.6 in. of
King Arthur's knights fire a cannon from the top of the castle wall. The cannonball is fired at a speed of 52 m/s and at an angle of 34°. A second cannonball that was accidentally dropped hits the moat below in 1.0 s. (a) How tall is the top o
Saturated vapor at 400 Kia flowing in a line is taken out through a valve to 100 kpa. What is the temperature (in C) as it leaves the valve assuming no changes in kinetic energy and no heat transfer?
Calculate the probability that a specific bus (say, line 34) passes from the bus stop in the next 10 minutes. Then, calculate the probability that the mean of all the buses is less than 10 minutes. Explain the result, does it make sense?
In water, without the enzyme, the reaction proceeds with a rate constant of 0.039s^-1 at 26C. In the presence of the enzyme in water, the reaction proceeds with a rate constant of 1.0 x 10^6 s^-1 at 26C.
1933952
Questions Asked
3,689
Active Tutors
1456773
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Summarize Buechner's concept of finding your purpose and explain how this aligns with the way you live out your worldview (missional purpose).
Professional Literature and practical application: New and creative ideas are great and many people find them exciting and compelling, but the experience is
In 250 words, discuss the two theories of the origin of Black English addressed by John McWhorter in this lecture. Which theory does he believe
For this assignment, you will write a paper no less than 7 pages in length, not including the required title and Reference pages, describing a single personalit
What is the role of teachers in helping children and teen's development? What is the influence of peer groups on children and teens?
How was culturally responsive teaching addressed in this lesson? (Be specific in your response. Refer to the CRT reading in Module 1)
What are the key purposes of utilizing logic models in criminal justice? Provide examples to substantiate your rationale.