PSYCH 1060 Reading Quiz Knowledge Check #2

Question 1

Which of the following is another name for the normal curve?

Accepted Answer

Bell-shaped curve

Question 2

Which standard score indicates the number of standard deviations from the mean?

Accepted Answer

Z score

Question 3

What percentage of scores fall on either side of the normal curve distribution?

Accepted Answer

50%

Question 4

Which technique is used to generalize findings from the sample to the population?

Accepted Answer

Inferential statistics

Question 5

If you cannot establish reliability and validity, then your results

Accepted Answer

Are inconclusive

Question 6

WOTF answers the question, "How do I know that the test, scale, or instrument I use measures what it&#x27;s supposed to?"

Accepted Answer

Validity

Question 7

Prob. allows us to determine the exact math. likelihood that diff. between groups is due to prac. or treat;chance or err

Accepted Answer

True

Question 8

Which of the following are all types of validity

Accepted Answer

Content, Criterion, and Construct

Question 9

The observed score is equal to the true score minus the error score

Accepted Answer

False

Question 10

What is the most commonly used standard score?

Accepted Answer

Z score

Question 11

Inferential statistics is based on which of the following

Accepted Answer

The sample is representative of the population

Question 12

Which of the following indicates that the test, scale or instrument used in research works every time?

Accepted Answer

Reliability

Question 13

What is the standard used by statisticians to determine the probability of something occuring outside of chance alone?

Accepted Answer

5%

Question 14

When you fold a normal curve, each half fits perfectly on top of the other, a characteristics known as

Accepted Answer

Symmetry

Question 15

Which of the following are all types of reliability

Accepted Answer

Test-retest, Parallel, and Internal consistency

Question 16

The first step in testing a hypothesis is

Accepted Answer

Provide a statement of the null hypothesis

Question 17

The actual or measured score you receive is known as the

Accepted Answer

Observed score

Question 18

When you accept the null hypothesis while it is actually false, what kind of error do you make?

Accepted Answer

Type II

Question 19

The foundation of inferential statistics is

Accepted Answer

Probabilty

Question 20

What is the term associated with identifying differences between groups that are not due to chance?

Accepted Answer

Significance

Question 21

Under the normal curve, what percentage of scores, approximately, falls between -1 and +1 SD&#x27;s around the mean?

Accepted Answer

68%

Question 22

The normal curve is not always symmetrical

Accepted Answer

False

Question 23

It is possible to control for every possible factor in a research study

Accepted Answer

False

Question 24

The fact that high-school class rank is highly correlated with college GPA is an example of what type of validity?

Accepted Answer

Predictive

Question 25

If measures associated with a test are consistent, then you can conclude that the measure is

Accepted Answer

Reliable

Question 26

An instrument cannot be valid unless it is reliable

Accepted Answer

True

Question 27

The most commonly used significance level researchers are willing to take in testing the null hypothesis is

Accepted Answer

0.05

Question 28

There is always the possibility of error when making a judgment in statistics

Accepted Answer

True

Question 29

After establishing the null hypothesis, what is the next step in the application of a statistical test?

Accepted Answer

Set the level of significance

Question 30

What kind of error do you make when you reject the null hypothesis when there is actually no difference between groups?

Accepted Answer

Type I

PSYCH 1060 Reading Quiz Knowledge Check #2

Questions 30

PSYCH 1060 Reading Quiz Knowledge Check #2

Questions 30