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When each member of a population has an equally likely chance of being selected, this is called:
A nonrandom sampling method
A quota sample
A snowball sample
An Equal probability selection method

Which of the following techniques yields a simple random sample?
Choosing volunteers from an introductory psychology class to participate
Listing the individuals by ethnic group and choosing a proportion from withineach ethnic group at random.
Numbering all the elements of a sampling frame and then using a random numbertable to pick cases from the table.
Randomly selecting schools, and then sampling everyone within the school

Which of the following is not true about stratified random sampling?
It involves a random selection process from identified subgroups
Proportions of groups in the sample must always match their population proportions
Disproportional stratified random sampling is especially helpful for getting large enough subgroup samples when subgroup comparisons are to be done
Proportional stratified random sampling yields a representative sample

Which of the following statements are true?a. The larger the sample size, the greater the sampling errorb. The more categories or breakdowns you want to make in your data analysis, the larger the sample neededc. The fewer categories or breakdowns you want to make in your data analysis, the larger the sample neededd. As sample size decreases, so does the size of the confidence interval
a
b
c
d

Which of the following sampling techniques is an equal probability selection method (i.e., EPSEM) in which every individual in the population has an equal chance of being selected?a. Simple random samplingb. Systematic samplingc. Proportional stratified samplingd. Cluster sampling using the PPS techniquee. All of the above are EPSEM
a
b
c
d
e

Which of the following is not a form of nonrandom sampling?a. Snowball samplingb. Convenience samplingc. Quota samplingd. Purposive samplinge. They are all forms of nonrandom sampling
a
b
c
d
e

Which of the following will give a more “accurate” representation of the population from which a sample has been taken?a. A large sample based on the convenience sampling techniqueb. A small sample based on simple random samplingc. A large sample based on simple random samplingd. A small cluster sample
a
b
c
d

Sampling in qualitative research is similar to which type of sampling in quantitative research?a. Simple random samplingb. Systematic samplingc. Quota samplingd. Purposive sampling
a
b
c
d

Which of the following would generally require the largest sample size?a. Cluster samplingb. Simple random samplingc. Systematic samplingd. Proportional stratified sampling
a
b
c
d

Which of the following types of sampling involves the researcher determining the appropriate sample sizes for the groups identified as important, and then taking convenience samples from those groups?a. Proportional stratified samplingb. Quota samplingc. One-stage cluster samplingd. Two-stage cluster sampling
a
b
c
d

Which of the following is the most efficient random sampling technique ?a. Simple random samplingb. Proportional stratified samplingc. Cluster random samplingd. Systematic sampling
a
b
c
d

A number calculated with complete population data and quantifies a characteristic of the population is called which of the following?a. A datumb. A statisticc. A parameterd. A population
a
b
c
d

The type of sampling in which each member of the population selected for the sample is returned to the population before the next member is selected is called _________.a. Sampling without replacementb. Sampling with replacementc. Simple random samplingd. Systematic sampling
a
b
c
d

Which of the following is not a type of nonrandom sampling?a. Cluster samplingb. Convenience samplingc. Quota samplingd. Purposive samplinge. They are all type of nonrandom sampling
a
b
c
d

The process of drawing a sample from a population is known as _________.a. Samplingb. Censusc. Survey researchd. None of the above
a
b
c
d

It is recommended to use the whole population rather than a sample when the population size is of what size?a. 500 or lessb. 100 or lessc. 1000 or lessd. you should always use a sample
a
b
c
d

Determining the sample interval (represented by k), randomly selecting a number between 1 and k, and including each kth element in your sample are the steps for which form of sampling?a. Simple Random Samplingb. Stratified Random Samplingc. Systematic Samplingd. Cluster sampling
a
b
c
d

If you drew all possible samples from some population, calculated the mean for each of the samples, and constructed a line graph (showing the shape of the distribution) based on all of those means, what would you have?a. A population distributionb. A sample distributionc. A sampling distributiond. A parameter distribution
a
b
c
d

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