1
WGU C207 STUDY GUIDE MODULE 5 & 6
2025/2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
incidence rate - 🧠 ANSWER ✔✔would be used if we want to measure the
proportion of health workers who acquire Ebola from working with Ebola patients
percentile - 🧠 ANSWER ✔✔indicates the percent of the population that falls below
a certain value
standard score - 🧠 ANSWER ✔✔for a particular data point, represents the distance
from the mean in terms of standard deviations
Analysis of variance (ANOVA) - 🧠 ANSWER ✔✔is used to determine if three or
more sample means are statistically not all equal
norm reference test - 🧠 ANSWER ✔✔is a test that compares an individual to other
individuals on the bell-shaped curve
criterion referenced test - 🧠 ANSWER ✔✔compares an individual to certain
defined standards
1
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, 2
observed score - 🧠 ANSWER ✔✔is the score actually achieved by an individual on
a test.
true score - 🧠 ANSWER ✔✔is the average score an individual would achieve if he
or she were to take the test infinite times
random measurement error - 🧠 ANSWER ✔✔can eventually be eliminated over
time as the number of tests increases (according to Classic Test Theory)
systematic measurement error - 🧠 ANSWER ✔✔occurs when something that is
entirely unrelated to the test is affecting test scores
item response theory - 🧠 ANSWER ✔✔takes into account that different questions
may have different levels of difficulty
reliability index - 🧠 ANSWER ✔✔measures how well a person's observed score on
a test represents that person's true score
test retest method - 🧠 ANSWER ✔✔applies when the same test is given to the
same sample on two different occasions
parallel forms method - 🧠 ANSWER ✔✔applies when two versions of a test are
given at the same time to each of half of a sample of students
2
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
WGU C207 STUDY GUIDE MODULE 5 & 6
2025/2026 EXAM QUESTIONS AND
ANSWERS | 100% PASS
incidence rate - 🧠 ANSWER ✔✔would be used if we want to measure the
proportion of health workers who acquire Ebola from working with Ebola patients
percentile - 🧠 ANSWER ✔✔indicates the percent of the population that falls below
a certain value
standard score - 🧠 ANSWER ✔✔for a particular data point, represents the distance
from the mean in terms of standard deviations
Analysis of variance (ANOVA) - 🧠 ANSWER ✔✔is used to determine if three or
more sample means are statistically not all equal
norm reference test - 🧠 ANSWER ✔✔is a test that compares an individual to other
individuals on the bell-shaped curve
criterion referenced test - 🧠 ANSWER ✔✔compares an individual to certain
defined standards
1
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
, 2
observed score - 🧠 ANSWER ✔✔is the score actually achieved by an individual on
a test.
true score - 🧠 ANSWER ✔✔is the average score an individual would achieve if he
or she were to take the test infinite times
random measurement error - 🧠 ANSWER ✔✔can eventually be eliminated over
time as the number of tests increases (according to Classic Test Theory)
systematic measurement error - 🧠 ANSWER ✔✔occurs when something that is
entirely unrelated to the test is affecting test scores
item response theory - 🧠 ANSWER ✔✔takes into account that different questions
may have different levels of difficulty
reliability index - 🧠 ANSWER ✔✔measures how well a person's observed score on
a test represents that person's true score
test retest method - 🧠 ANSWER ✔✔applies when the same test is given to the
same sample on two different occasions
parallel forms method - 🧠 ANSWER ✔✔applies when two versions of a test are
given at the same time to each of half of a sample of students
2
COPYRIGHT©NINJANERD 2025/2026. YEAR PUBLISHED 2025. COMPANY REGISTRATION NUMBER: 619652435. TERMS OF USE. PRIVACY
STATEMENT. ALL RIGHTS RESERVED
