Multiple Choice
A researcher interested in language development obtains a sample of 25 three-year-old girls and a sample of 25 three-year-old boys.Each child is given a vocabulary test and the researcher computes the mean score for each sample.The difference between the two sample means is an example of a
A) parameter.
B) statistic.
C) variable.
D) constant.
Correct Answer:

Verified
Correct Answer:
Verified
Q26: It is always possible that patterns observed
Q30: Describe what is measured by the mean
Q34: Explain why a measure of effect size
Q37: Explain the concept of statistical significance.Be sure
Q44: Values such as Cohen's d or r²
Q49: For a within-subjects study evaluating the mean
Q50: What outcome is likely to occur for
Q51: By convention, it has been determined that
Q54: A researcher records the average age for
Q57: A Type I error means that the