Question

A child psychologist hypothesizes that motivation predicts locus of control in pre-adolescent children. To investigate this, the psychologist has a sample of pre-adolescent participants fill out a questionnaire that measures locus of control and motivation. Below are the data. What can the psychologist conclude with an α of 0.10?

locus	motivation
15 16 15 14 19 12 18 13	21 23 15 14 22 13 21 14

a) What is the appropriate statistic?
---Select--- na, Correlation, Slope, Chi-Square
Compute the option selected in a):  

b) Obtain/compute the appropriate values to make a decision about H₀.
(Hint: Make sure to write down the null and alternative hypotheses to help solve the problem.)
Critical value =  ; Test statistic =  
Decision:  ---Select--- Reject H0, Fail to reject H0

c) Compute the corresponding effect size(s) and indicate magnitude(s).
If not appropriate, input and/or select "na" below.
Effect size =  ;   ---Select--- na, trivial effect, small effect, medium effect, large effect

d) Make an interpretation based on the results.

a. More motivation significantly predicts more locus of control.

b. Less motivation significantly predicts more locus of control.

c. Motivation does not significantly predict locus of control.

Answer 1

d) interpretation based on the results.

Motivation does not significantly predict locus of control.