METHODS OF DATA ANALYSIS
VALIDITY AND DELIMITATIONS OF RESEARCH FINDINGS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
issues
|
|
|
lack
|
|
|
insufficient
|
|
|
limitations
|
Detailed explanation-1: -Finally, sampling issues can arise if the sample is either too big or too small. If the sample is bigger than it needs to be in order to reliably generalize findings back to the population, the data collection efforts are likely wasting resources such as researcher time and money.
Detailed explanation-2: -The factors affecting sample sizes are study design, method of sampling, and outcome measures – effect size, standard deviation, study power, and significance level.
Detailed explanation-3: -What population parameters we want to estimate. Cost of sampling (importance of information) How much is already known. Spread (variability) of the population. Practicality: how hard is it to collect data. How precise we want the final estimates to be.