Nic's tech writings

Multilevel Models (also known as mixed effects, nested or hierarchical data models) are used to find the effects of levels on a predictor variable. These hierarchical levels can be geographical, such as cities within counties, or organizational, products within stores. This method is useful to determine how factors affect the variation between a unit and the group. Multilevel models are gaining popularity in the areas of organizational psychology, education research, and the geographical sciences. 1. Data -  First, as its alternative names suggest, data needs to be nested. There is no specific number for a data sample; however, the smaller the dataset, the more prone to errors such as bias.  For example, in my dissertation I used a two-level model for a dataset including 327 units (municipalities) nested within 12 geographical divisions:   Once you have made sure your data is nested, you can run a single level regression using your units to choose the variables t...

This tutorial explains how to create and export a video from PowerPoint, starting from recording audio to your slides, to exporting mp4s of your slideshows.   Recording audio 1. Select Slide Shows on the upper toolbar. Then, click on Record Slide Show.  Pressing this button  automatically sets your recording to your first slide. You can also press the dropdown menu and choose to record on your current slide. 2. PowerPoint begins recording audio as soon as you click 'Start Recording' in the pop-up rectangle. A box appears on your upper left screen (If it is not there, you can access it by moving your pointer upwards, beyond the screen).  Press exit to stop recording. If you keep on clicking through your content, it continues recording on your next slide. However, the audio is saved separately on each slide. 3. The recorded audio is accessible on the bottom right of each slide via the "sound" icon. As far as I am aware, you cannot edit or remove parts...