# June 2020

## Examples of Sampling Bias and Demand Characteristics through a Daily Show Clip

A clip (5:30) from the The Daily Show with Jon Stewart that demonstrates how sampling bias and demand characteristics can lead to misleading conclusions. “Poll Bearers: Cable news polls might not reflect public opinion so much as the ability of viewers to repeat the ideas they just heard.” View the episode here.

## First Day Getting to Know You Survey

Establishing a rapport with students is connected to students’ success, interest, and pro-academic behaviors. Rapport can be particularly hard to establish in an online learning environment. One way to help establish rapport is by starting the semester with a survey that helps you get to know the students and their needs. Teachers who do this …

## Video: One-Way ANOVA (SPSS for Beginners)

Video (11:19) from Research by Design described as follows, “Using the same example from the Wizard of Oz involving Munchkins and wicked witches in various regions that we used learning ANOVA by hand, we are going to learn about conducting a one-way ANOVA using SPSS. We will create the dataset in SPSS, conduct a one-way …

## Video: Chi-Square (SPSS for Beginners)

Video (7:37) from Research by Design described as follows, “We are now going to learn how to calculate a one-way chi-square in SPSS. This is the House of Pigs Chi Square, using the dataset BuildingPermits.sav. A house inspector randomly samples building permits pulled by 70 little pigs who were building houses, to determine whether a …

## Video: Independent-Samples t-test (SPSS for Beginners)

Video (8:11) from Research by Design and Dr. Todd Daniel, described as follows, “Another way of measuring the difference between two samples is to compare two unrelated groups or participants or samples. In this design, you measure two groups one time; in contrast, the previous paired test measured the same sample two times. With independent …

## Video: One Sample and Paired-Samples t-test (SPSS for Beginners)

Video (6:02) from Research by Design and Dr. Todd Daniel, described as follows, “When we calculate the mean of a sample, we can then use a one-sample t test to compare that sample mean to another mean, such as a mean from a population, a normative group, or another known value (mean). The “one sample” …

## Video: Correlation (SPSS for Beginners)

Video (9:52) from Research by Design and Dr. Todd Daniel, described as follows, “Using the dataset we created in the first video, we now explore the relationship between our two scale-level variables: height and weight. We will use Pearson’s correlation to measure this relationship. We will also learn about a point biserial correlation with gender.” …

## Video: Frequencies and Descriptive Statistics (SPSS for Beginners)

Video (14:01) from Research by Design and Dr. Todd Daniel, described as follows, “Having learned how to create a variable, you are ready to begin entering data. Dr. Daniel begins with descriptive statistics (numbers that describe our data) and shows you how to do some basic data cleaning and data exploration with the Frequencies command …

## Video: Introduction to SPSS & Creating Variables (SPSS for Beginners)

Video (10:15) from Research by Design and Dr. Todd Daniel, described as follows, “Are you ready to learn how to use SPSS for your introductory statistics class? You have come to the right place. This is the first in a series of eight videos that will introduce you to using SPSS for introductory statistics. This …

## Simple Rules for Concise Scientific Writing

A central feature of scientific writing is clear and concise prose. This paper by Scott Hotaling (follow him on Twitter) provides a set of easy to follow rules to follow when writing research papers. Though this isn’t specifically for psychology or APA style papers, his suggestions are fantastic general tips for becoming a better writer. …

## Video: Random Sampling

A brief (2:25) video from Pew Research Center in which, “The first video in Pew Research Center’s Methods 101 series helps explain random sampling – a concept that lies at the heart of all probability-based survey research – and why it’s important.”

## Activity: Identifying Confounds

This activity gives students practice identifying confounds in several descriptions of research. This activity should take approximately 10 minutes. Students could work individually or in groups to identify the confound in each scenario. An answer key is provided. Please click here for the file.

## Video: How to Word Survey Questions

Video (5:27) from Pew Research Center in which, “The second video in Pew Research Center’s “Methods 101” series helps explain question wording – a concept at the center of sound public opinion survey research – and why it’s important.”

## Video: How to Do Chi-Square in JASP

Video (10:27) from Research by Design in which, “We learn how to calculate a One-Way Chi-Square goodness of fit test in JASP using the setting for Multinomial Test. For the null hypothesis, we assume that the observed values in one group (the Pigs) do not differ from the values in a comparison population (the Bears) …

## Video: How to Do Simple Linear Regression in JAS

Video (23:18) from Research by Design in which, “Exploring our data about burnout and job satisfaction, we predict an outcome with a single variable using simple linear regression in JASP. I explain how regression works, then open an SPSS dataset in JASP. We explore the assumptions of homoscedasticity and linearity with a scatterplot and normality …

## Video: How to Do a Pearson Correlation in JASP

Video (18:47) from Research by Design in which, “Using a dataset about burnout and job satisfaction, we learn how to conduct a simple correlation, how to interpret it, and how to write it up in APA style. We begin by exploring the theoretical relationship among the variables to understand how correlation works. After we walk …

## Video: How to Do an One-Way ANOVA in JASP

Video (14:02) from Research by Design in which, “We are off to see the wizard with an example of a one-way (factorial) ANOVA involving wicked witches and munchkins. We open a .CSV dataset in JASP, check the assumptions of homogeneity of variance and normality, conduct the test, interpret the results, and write up the findings …

## Video: How to Do an Independent Samples t Test in JASP

Video (18:29) from Research by Design in which, “Using a dataset about puppy training, we learn how to set up and run an independent samples t test. We import data into JASP, conduct the test, interpret the results and write up the findings. We will learn to check the assumptions of homogeneity of variance using …

## Video: How to Do a One Sample and Paired-Samples t Test in JASP

Video (16:57) from Research by Design in which, “The One Sample t-Test is a parametric procedure that tests whether a sample mean is statistically significantly different than a population mean or other known value. We will open a CSV dataset in JASP, check the assumptions of the test, conduct the one sample t-test, interpret the …

## Video: Computing Central Tendency and Variability in JASP

Concise video (9:50) from Research by Design in which, “We walk through the steps to identify three measures of central tendency (mean, median, and mode) using JASP. This is an excellent introduction to JASP software and some of the functions that we will use throughout the introductory statistics course.” (7:41) “We will learn how to …