Multiple Choice
A researcher is examining motor skill development by observing children at 18 months old,24 months old,and 30 months old.If the researcher uses a longitudinal design and obtains 20 scores for each age,how many children participated in the entire study?
A) 20
B) 40
C) 60
D) cannot determine without more information.
Correct Answer:
Verified
Correct Answer:
Verified
Q4: In a cross-sectional developmental study, age would
Q12: A cross-sectional design comparing three different ages
Q21: Describe the similarities and differences between time-series
Q24: The basic threat to internal validity for
Q25: The primary problem with a cross-sectional developmental
Q26: In a time series design,the series of
Q28: Which of the following accurately describes what
Q32: The internal validity of the pre-post designs
Q34: Longitudinal developmental studies provide a relatively quick
Q59: Differential research is an example of the