Show:
Research Design
Scales of Measurement
Analyses
Writing a Research Paper
Random Methods Stuff!
100

Between what values does a skewness value need to be in order for a distribution to be considered "normal"?

What is.. -1 and 1?

100

What is an example of a Nominal scale of measurement?

What is...race?

What is...gender?

What is...religion?

100

How many groups are required in order to run a t-test of mean differences?

What is...2 groups?

100

Which of the following is typically included in an Introduction?

A) Procedures

B) Review of the literature

C) Testable research questions

D) B and C

What is...D?

100

Non-paramentric tests are used when...

What is...when the data are non-normal?

200

True or False:

It is ethical to perform an experiment in which "deception" is used.

What is...True?


Researchers may use deception as long as there is "minimal risk" to the participant and whenever possible, participants are debriefed following the study.

200

What scale of measurement would be used to analyze the responses of the following open-ended question:

"What is your age?"

What is...Ratio Scale?

200

Which is the appropriate effect size value of a correlation when both variables are normally distributed?

A) Spearman Rho

B) Eta Squared

C) Chi Squared

D) Pearson r


What is...D?

200

In a research paper, where would a reader find a complete assessment or survey tool used in a researcher study?

What is...the appendix?

NOT in the method section, only example items!

200

What is an example of central tendency?

What is...mean, median, mode?

300

What is the difference between reliability and validity?

What is... reliability refers to a measure's consistency vs. validity refers to accuracy in measuring what is intended to be measured? 

300

What scale of measurement would you use to analyze the responses to the following question..

How well have you been adjusting to life in the Pandemic?

a) Not well at all

b) Somewhat well

c) Moderately well

d) Very well

What is...Ordinal?

300
If the null hypothesis (H0) of our study was that there is no significant difference between men and women on social justice activism, and our results included the t-statistic with a p-value score of .08, we would say...


A) We rejected the null hypothesis

B) We failed to reject the null hypothesis 

What is...B?


We would reject the null if our t-statistic was significant, or p<.05.

300

True or False:

Results of analyses should be interpreted in the Results section.

What is...False?

Interpretation happens only in the Discussion section. :)

300

Dr. B is very interested in collecting data from fathers of infant attachment. In the past, other researchers have said it's really hard to get dads in the lab! Dr. B decides to try her study idea out on a few families just to see if she is able to get dads to participate in the project.

This practice run of her study is an example of...

What is...a pilot study?

400
You just won a research grant! Great job! You have limited funds, but you would like to pay participants to complete your study. You have to balance how much funding you have available with how many participants you would like to recruit to maintain power. If you try to recruit too many participants, you will have to plan to pay them less. But if you advertise your study with too low of an incentive, you may not recruit enough participants. What type of error is front of mind in this situation?

What is...Type II error?

More people = more power = lower odds of Type II error!

400

What scale(s) of measurement do you need to use in order to perform a Pearson Correlation?

What is...Interval/Ratio Scales?

400

Assuming the DV is normally distributed, which test of mean differences would be used when the grouping variable of interest has 2 or more groups and the DV is on an interval or ratio scale?

What is...one-way ANOVA?

If the DV is NON-normal and/or the DV was on an ordinal scale, the appropriate test would be the Kruskal-Wallis H.

400

Which of the following figures should be used to visualize the relationship between two continuous variables?

A) Scatterplot

B) Histogram

C) Pie Chart

What is...A?


A histogram can be used to evaluate skewness and/or kurtosis

A pie chart can be used to compare group sizes (percentages of the whole)

400

A study which includes...

1. A pre-test and a post-test (same instrument both times)

2. An experimental group and a control group

3. Random assignment

...is called...

What is...a randomized control trial?

500

True or False:

In general, if an effect is large, a larger sample size is needed to detect it.

What is...False?

500

What is an example of an interval scale of measurement?

What is...Income (e.g. $10,000-15,000; $15,001-$16,000, etc.)

What is...Temperature (e.g. 30-40 degrees, 41-50 degrees, etc.)

500

What is Levene's Test?

What is...an inferential statistic which tests the equality of variances between k groups of a grouping variable?

500

When reporting the results of a correlation, which of the following are important to include?

A) Significance value

B) Sample size

C) The effect size

D) All of the above

What is...all of the above?

Example:

r(200) = -.65, p = .02.

500

What are "inferential statistics"?

What is...statistics which determine the probability results from the sample data collected are due to chance; statistics which are used to infer conditions of the population being studied using a sample

Compared to descriptive statistics..which only refer to the nature of the sample!