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tigry1 [53]
3 years ago
6

Tom wants to use a computer program to assess the reliability of his new intelligence test. The test has 10 items, and the compu

ter program finds the average of all possible split-half correlations between groups of 5 items. What measure of reliability did he use?
Social Studies
1 answer:
kobusy [5.1K]3 years ago
6 0

Answer:Cronbach's alpha

Explanation:

Cronbach's alpha is used to measure consistency interms of how closely associated items in a group are.

It measures the scale of reliability as a coefficient of reliability not statistically.

below is a formula that is used to calculate this reliability.

α=N¯c/¯v+(N−1)¯c

Here N  equate to the number of items, ¯c is the average inter-item covariance among the items and ¯v equals the average variance.

The increase number of items will increase Cronbanch's Alpha.

Additionally, if the average inter-item correlation is low, alpha will be low. 

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Cause Effect
Alex73 [517]

The above meant for the expansion of slavery was that move and move slaves were required to be carted off from Africa, the demand for slavery increased.

<h3>Why did Slavery increase in the South?</h3>
  • Property owners in the southern colonies began constructing plantation farms for lucrative crops because of the good climate and abundant land.
  • The introduction and fast proliferation of cotton and gin were key causes for the revival of slavery. This machine enabled Southern planters to cultivate a kind of cotton known as short-staple cotton, which was ideal for the Deep South's environment.
  • The idea of Manifest Destiny propelled nineteenth-century territorial expansion in the United States and was used to justify the forcible expulsion of Native Americans and other communities from their homes.
  • The issue of slavery became more pressing as new states were admitted to the Union, resulting in the outbreak of the Civil War.

To learn more about slavery refer to :

brainly.com/question/9374853

#SPJ4

3 0
1 year ago
The sociological significance of social structure is that it guides our behavior.
Ilia_Sergeevich [38]

Answer:

a. True

Explanation:

  • Social structure controls the behavior of the members of a society in different ways.
  • The structure of a society is what groups its members according to factors such as class, age and so on.
  • The members of each group in a social structure are expected to behave in a certain manner, Like in the social structure, children are subordinates and therefore are supposed to be adherent to their parents.
7 0
3 years ago
Einstein's general theory of relativity made or allowed us to make predictions about the outcome of several experiments that had
BartSMP [9]
The experiments are:
- The gravitational lensing that experiments use to light around the dark matter such as black hole which makes the light bent.
- The gravity probe B that <span>makes the axes of gyroscopes inside to drift slightly over a period o time, a result that some how relevant to einstein theory
- </span>the Laser Interferometer Gravitational Wave Observatory (LIGO<span>)  that found piece of evidences for black hole colission</span>
6 0
3 years ago
Which of the following statements about taxes is FALSE? A. Taxes are collected at the local, state and federal level B. Some sta
belka [17]
I believe the answer would be B. Some states don't collect income tax because every person in every state has to pay their taxes. Hope I helped!
7 0
3 years ago
An order by a juvenile court judge putting the juvenile in the custody of a state juvenile correctional authority, or another sp
Mumz [18]

Answer:

The correct answer to the following question will be "Commitment".

Explanation:

  • An authorization from a court justice establishing the child in the care of a public juvenile prison agency or certain individual juvenile prison institution is considered an undertaking. Within detention settings, most offenders are pending trial and haven't been litigated as guilty.
  • If a magistrate wants to move a lawsuit from such a court towards federal custody, a juvenile waiver happens. The offender shall be prosecuted as something of an individual and any rights that can occur in criminal cases shall be refused.

Therefore, it's the right answer.

7 0
3 years ago
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