How strong is the difference between the two groups’ maths achievement?
What will be an ideal response?
When we talk about the strength of a relationship, we have to look at the effect size. For the T-test, that means we have to calculate Cohen’s d. There are a couple of steps in
doing this. The first is to calculate the pooled standard deviation. This we do by adding the standard deviations for boys and girls (which can be found in the first output box) and dividing that by two:
12.34+12.06=24.40
24.4/2=12.2
The second step is to calculate the difference between the means of the two groups (boys and girls):
75.55-76.47=-0.92
In the final step we divide the difference between the means by the pooled standard
deviation:
-0.92/12.2=-0.075.
As this is less than -.1, we would say that this is a weak effect.
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a. mental operations b. mental contents c. how parts contribute to a whole d. how mind and behavior interact
CHOOSE ALL THAT APPLY. Which of the following describes the size of the music and movement center at the beginning of its use?
a. a large amount of space b. indoors and/or outdoors c. limited to a somewhat confined area d. room for only two or three participants
Health educators have no role in organizing in-service programs or connecting community agencies with health education materials with classroom teachers
Indicate whether the statement is true or false.
What is not a basic question to ask a contact who you don't know?
a. How did you obtain your position? b. What is your salary? c. What do you dislike about your job? d. What trends do you see in your field?