HCD 300 Review (Exam 1) UPDATED ACTUAL Questions and CORRECT Answers

HCD 300 Review (Exam 1) UPDATED
ACTUAL Questions and CORRECT
Answers
Subtracting the lowest value of a data set from the highest value of a data set results in this measure.



- Range

- Interquartile Range

- Mode

- Median - CORRECT ANSWER -Range



T/F: Standard deviation = variance squared - CORRECT ANSWER -F - Standard deviation is
square root of variance



This is the value obtained by: sum(X/n)



- Interquratile range

- Standard deviation

- Mean

- Variance - CORRECT ANSWER -Mean



The average variation from the mean:



- interquartile range

- range

- variance

- standard deviation - CORRECT ANSWER -Standard deviation

, The reason we use n-1 in the denominator of the standard deviation formula



- to obtain an unbiased estimate

- to artificially increase the standard deviation

- to be conservative in the estimation of variability

- we do not use n-1 in the formula - CORRECT ANSWER -- to obtain an unbiased estimate

- to artificially increase the standard deviation

- to be conservative in the estimation of variability



T/F: A test must first be reliable before it can be valid - CORRECT ANSWER -True



Comparing two different tests (such as an oral and ear thermometer) we can determine



- Test-retest reliability

- Parallel forms reliability

- interrater reliability

- internal consistency reliability - CORRECT ANSWER -Parallel forms reliability



Comparing the percent agreement between two observers on a particular test:



- test-retest reliability

- parallel forms reliability

- interrater reliability

- internal consistency reliability - CORRECT ANSWER -interrater reliability



If a test is consistent over time it has:



- test-retest reliability