Research Methods Exam 1

A lower impact factor on a lit review indicates higher research paper quality.

If there is a statistical difference/relationship we:

P values should not be included in the reference tables that include descriptive statistics.

Power depends on sample size.

Which study type creates a research question in order to synthesize current knowledge from previous research studies?

Which study type uses data collected at a single time point?

Which of the following describes a quantitative study:

Which of the following would have the lowest risk of bias?

To prove rationale for a research question, researchers must address these 3 points:

An alternative hypothesis means

What percentage of the sample is 1 standard deviation away from the mean?

"Normalization" of a bell curve:

When researchers retain or reject a null hypothesis, they are performing which type research:

To avoid a false positive, we usually need:

Comparing the sleep quality between patients and healthy individuals would represent what type of study design?

What describes how much, on average, scores deviate from the mean of the data set?

If alpha is set to .05 & if P = .03, but we see a small sample size or skewed distribution, we may have a:

Which of the following would be lowest in the evidence hierarchy?

If alpha is set at .05 & P = 0.3, then we reject the null hypothesis.

All of the following are true about exclusion criteria EXCEPT:

A study is unlikely to reflect the truth if:

If we find that our alternative hypothesis may be true and have the alpha level set to 0.1, what may also be true?

What quantitative study design does not involve an intervention?

All of the following are qualities of an experimental study design EXCEPT:

the normal distribution of data should:

Which selection has the highest quality of evidence and lowest risk of bias?

Type I errors are also known as:

Descriptive statistics describe the characteristics of a sample and can be qualitative or quantitative

Which type of non-probability sampling should be used when members of a population are difficult to find?

The potential subjects who are available for a study are:

Which of the following describes a qualitative study

If the P value is equal to or less than the alpha level, we reject the null hypothesis.

We can avoid bad research by:

What is the main difference between a case report and a case study?

All of the following are examples of non-probability sampling EXCEPT:

A study design that compares a control group to an experimental group, but has no random assignment is experimental.

If there is no sample size justification/power analysis in a paper, that reduces the quality of the paper.

What type of sampling is used in quantitative research using readily available subjects?

Statistics that allow researchers to make estimates of population parameters can be seen in:

If we fail to reject the null hypothesis, but there is a low power or small sample size, we may have a:

What is the typical alpha level?

What describes a cohort study?

Which type of the following describes purposive sampling?

Peer-review in journals:

Which of the following is an example of probability sampling?

Which of the following study types use data that is collected after the research question has been determined?

If the P value is equal to or less than the alpha level, we fail to reject the null hypothesis

A null hypothesis means:

We fail to reject the null hypothesis if P>alpha

A reference table that does not include a p-value can be seen in: