10.36 Gender and number words: Chang, Sandhofer, and Brown (2011) wondered whether mothers used num- ber words more, on average, with their preschool sons than with their preschool daughters. Each participat- ing family included one mother and one child-either female or male. They speculated that early exposure to more number words might predispose children to like mathematics. They reported the following: "An inde- pendent-samples t test revealed statistically significant differences in the percentages of overall numeric speech used when interacting with boys compared with girls, (30) number terms with boys an average of 9.49% of utter- ances (SD = 2.40, p< .05, d .88. That is, mothers used 6.78%) compared with 4.64% of utter- ances with girls (SD = 4.43%)" (pp. 444-445). Is this a between-groups or within-groups design? Explain your answer. b. What is the independent variable? What is the dependent variable? c. How many children were in the total sample? Explain how you determined this. Is the sample likely randomly selected? Is it likely that the researchers used random assignmnent? Were the researchers able to reject the null hypoth- esis? Explain. What can you say abour the size of the effect? Describehow you could design an esperment to sest Avhether Exposure to more nunber wOrs in
10.36 Gender and number words: Chang, Sandhofer, and Brown (2011) wondered whether mothers used num- ber words more, on average, with their preschool sons than with their preschool daughters. Each participat- ing family included one mother and one child-either female or male. They speculated that early exposure to more number words might predispose children to like mathematics. They reported the following: "An inde- pendent-samples t test revealed statistically significant differences in the percentages of overall numeric speech used when interacting with boys compared with girls, (30) number terms with boys an average of 9.49% of utter- ances (SD = 2.40, p< .05, d .88. That is, mothers used 6.78%) compared with 4.64% of utter- ances with girls (SD = 4.43%)" (pp. 444-445). Is this a between-groups or within-groups design? Explain your answer. b. What is the independent variable? What is the dependent variable? c. How many children were in the total sample? Explain how you determined this. Is the sample likely randomly selected? Is it likely that the researchers used random assignmnent? Were the researchers able to reject the null hypoth- esis? Explain. What can you say abour the size of the effect? Describehow you could design an esperment to sest Avhether Exposure to more nunber wOrs in
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
qstn 10.36
ANSWER part a,b,c
PLEASE PROVIDE TYPED ANSWERS
Transcribed Image Text:ting
10.36 Gender and number words: Chang, Sandhofer, and
Brown (2011) wondered whether mothers used num-
ber words more, on average, with their preschool sons
than with their preschool daughters. Each participat-
ing family included one mother and one child-either
female or male. They speculated that early exposure to
more number words might predispose children to like
mathematics. They reported the following: "An inde-
pendent-samples t test revealed statistically significant
differences in the percentages of overall numeric speech
used when interacting with boys compared with girls,
(30) = 2.40, p<.05, d = .88. That is, mothers used
number terms with boys an average of 9.49% of utter-
6.78%) compared with 4.64% of utter-
ances (SD
ances with girls (SD = 4.43%)" (pp. 444-445).
Is this a between-groups or within-groups design?
Explain your answer.
b. What is the independent variable? What is the
dependent variable?
c. How many children were in the total sample?
Explain how you determined this.
d. Is the sample likely randomly selected? Is it likely
that the researchers used random assigument?
ful
Were the researchers able to reject the null hypoth-
EN? Explain.
Whit can vOLE SAN about the size of the effect?
her
ho
nd
Desribe how vHLCOuld design an Experiment to
test hether exposurc to more number wods in
preschool leds children to like matbematics ore
Mhen they ererischool
し
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