Radiopaedia Helpers

Contractions

error

"The sample groups in a student t-test are both drawn randomly from the same population. An intervention is performed on one group and the other is a control. The researcher then looks for a difference between the groups (a difference in their mean values). The problem with this (and the reason for the test) is that he or she doesn't know what the population mean or standard deviation is."

Line 9:331 · Never use contractions: use 'does not' in place of 'doesn't'.

"There's only one wrinkle, before you can determine if your result is statistically significant, you need to determine how many degrees of freedom you are using (which is n1 + n2 - 2)."

Line 16:4 · Never use contractions: use 'there is or there has' in place of 'There's'.

So

error

"So the t-score becomes:"

Line 14:4 · Don't start a sentence with 'So'.

Number Spacing

error

"There's only one wrinkle, before you can determine if your result is statistically significant, you need to determine how many degrees of freedom you are using (which is n1 + n2 - 2)."

Line 16:196 · In a number range, there should not be spaces around the hyphen ('2 - 2').

Headings Case

warning

"|(mean of group 1 - mean of group 2)|"

Line 11:5 · '|(mean of group 1 - mean of group 2)|' should use sentence-style capitalization.

"SEd = √(s1²/n1 + s2²/n2)"

Line 13:5 · 'SE d = √(s 1 2/n 1 + s 2 2/n 2)' should use sentence-style capitalization.

"t = |(mean of group 1 - mean of group 2)| / √(s1²/n1 + s2²/n2)"

Line 15:5 · 't = |(mean of group 1 - mean of group 2)| / √(s 1 2/n 1 + s 2 2/n 2)' should use sentence-style capitalization.

Acronyms

warning

"SEd = √(s1²/n1 + s2²/n2)"

Line 13:5 · 'SE' has no definition. Spell it out if it's unfamiliar to the audience.

"if testing more than two groups consider a one-way ANOVA"

Line 22:62 · 'ANOVA' has no definition. Spell it out if it's unfamiliar to the audience.

Headings Valid

warning

Expected headings

H1 Terminology
H1 Usage
H1 Epidemiology
H2 Risk factors
H2 Associations
H1 Clinical presentation
H2 Complications
H1 Diagnosis
H2 Diagnostic criteria
H2 Diagnostic clues
H1 Pathology
H2 Aetiology
H2 Location
H2 Classification
H2 Macroscopic appearance
H2 Microscopic appearance
H2 Immunophenotype
H2 Markers
H2 Genetics
H1 Radiographic features
H2 Plain radiograph
H2 Mammography
H2 Antenatal ultrasound
H2 Transoesophageal echocardiography
H2 Ultrasound
H2 CT
H3 Dual-energy CT
H2 Angiography (DSA)
H2 MRI
H2 CT/MRI
H2 Nuclear medicine
H3 PET-CT
H3 PET-MRI
H1 Radiology report
H1 Treatment and prognosis
H2 Complications
H1 History and etymology
H1 Differential diagnosis
H2 Clinical differential diagnosis
H1 Practical points
H1 See also

"|(mean of group 1 - mean of group 2)|"

Line 11:1 · "|(mean of group 1 - mean of group 2)|" is not a recognised heading for this article type.

"SEd = √(s1²/n1 + s2²/n2)"

Line 13:1 · "SEd = √(s12/n1 + s22/n2)" is not a recognised heading for this article type.

"t = |(mean of group 1 - mean of group 2)| / √(s1²/n1 + s2²/n2)"

Line 15:1 · "t = |(mean of group 1 - mean of group 2)| / √(s12/n1 + s22/n2)" is not a recognised heading for this article type.

"Other statistical options"

Line 18:1 · "Other statistical options" is not a recognised heading for this article type.

Inline EG

suggestion

"must not be "matched data" (e.g. before and after results for the same group)"

Line 5:35 · Consider replacing a bracketed e.g. with an inline e.g. after a comma.

"must be continuous data (e.g. interval or ratio data)"

Line 7:32 · Consider replacing a bracketed e.g. with an inline e.g. after a comma.

There Is

suggestion

"There are many computer programs that will automate the above steps for you and provide you with a t-score for your data."

Line 17:4 · Don't start a sentence with 'There are'.

Lint: student-t-test-1