Question

A study was conducted on twins at age 5 years old. One twin was assigned to be homeschooled and another twin was assigned to attend public school for the next 5 years. At the end of the 5 years, they conducted a battery of academic tests and scored the toddlers for overall academic achievement with a total of 100 points, higher scores indicating greater academic achievement.

What hypothesis testing technique should the researcher use to analyze the data?

A) ANOVA

B) Chi-square

C) Two Sample T-Test

D) Paired T-Test

Answer #1

Solution:

Answer is

**Two Sample T-Test**

**Option C) is correct.**

Explanation:

We are comparing two populations.

academic achievement in homeschool and academic achievement in public school

Two samples are independent.

Paired- t tests compare scores on two different variables but for the same group of cases; independent-samples t tests (i.e. two samples t test ) compare scores on the same variable but for two different groups of cases.

So , Answer is

**Two Sample T-Test**

**Option C) is correct.**

5. A study was conducted to investigate the
risk factors for peripheral arterial disease among persons 55-74
years of age. Data were collected pertaining to LDL cholesterol
levels (mmol/liter) from four different subgroups of subjects:
Group
Sample Size
Sample Mean
(intermittent) Patients with intermittent claudication
25
6.28
(major) Major asymptomatic disease cases
35
5.70
(minor) Minor asymptomatic disease cases
27
5.04
(no) Those with no disease
30
5.16
It is assumed that LDL values are approximately normally
distributed in each...

What Statistical Test Should I Use
Please indicate the type of test needed to analyze the data
described.
Hints: Think about the IV and DV. How many levels of
the IV? Are they repeated measures? Are the data
categorical?
A. z-test
B. One-Sample t-Test
C. Dependent Measures t-Test
D. Independent Measures t-Test
E. One-way ANOVA
E. One-way ANOVA
F. Post-hoc tests
G. Between-Subjects Factorial ANOVA
H. Chi-Square test of Independence
________ 1. Compare spatial task scores after 0 or 3 drinks....

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