Flavell, Beach and Chinsky (1966), Table 1

Three by three contingency table for the data presented in Table 1 of Flavell, Beach and Chinsky (2021), in long format. The authors recruited 20 students per grade.

Usage

FBC66_T1

Format

A data frame with 9 rows and 3 variables:

grade

[factor] grade of student, one of kindergarden (K), second (2) or fifth (5) grade

frequency

[factor] category indicating how often students verbalized during task, one of 0, 1-2 or 3+

count

[integer] count of the number of student

References

Flavell, J. H., Beach, D. R., & Chinsky, J. M. (1966). Spontaneous verbal rehearsal in a memory task as a function of age. Child Development, 37, 283-299. doi:10.2307/1126804

Examples

chisq.test(xtabs(count ~ grade + frequency, data = FBC66_T1))
#> Warning: Chi-squared approximation may be incorrect
#> 
#> 	Pearson's Chi-squared test
#> 
#> data:  xtabs(count ~ grade + frequency, data = FBC66_T1)
#> X-squared = 28.358, df = 4, p-value = 1.055e-05
#>