Source : [[Article - A systematic review of momentary assessment designs for mood and anxiety symptoms]] 1. Signal Contingent - Participants respond when they are pinged. (i.e For times per day at random times) 2. Interval Contingent - Participants respond to pings that are spaced out using predetermined time intervals (i.e every 3 hours) 3. Event Contingent - They fill out questionnaires every time a specific event occurs (e.g when they experience a panic attack) "First, there are three broad categories of data collection schedules to consider: (a) signal-contingent: participants respond to questionnaires when they are pinged (i.e., four times per day at random times), (b) interval-contingent: participants respond to pings that are spaced out using predetermined time intervals (i.e., receiving a ping every 3h), and (c) event-contingent: participants fill out questionnaires every time a specific event occurs (e.g., when they experience a panic attack; Wheeler and Reis, 1991). For the purposes of this study, we include signals related to specific contexts as part of event-contingent signaling. For example, if a participant enters into a particular social or physical context (e.g., starting a conversation with other people or walking into a bar, respectively), this is considered to be an “event.” Each of these schedules address different kinds of research questions. Interval- and signal-contingent recording are beneficial when it comes to examining constructs that are dynamic over time, while event-contingent recording can be used to study specific situations (e.g., during panic attacks; Sakamoto et al., 2008; Walz et al., 2014). Despite the fact that each method has its benefits and may be particularly well-suited to address specific research questions, the differences in the timing of the pings can complicate the generalizability of findings across EMA studies. More specifically, researchers must be cautious in comparing results across different types of schedules (e.g., event- vs. signal- contingent) since they may fundamentally be studying divergent aspects of a psychological condition: one may be focused on the frequency and intensity of panic attacks throughout the week, while another may be more interested in more granular fluctuations in anxiety on one specific day." --- Related to ![[0_PARA/🎯 Projects/HOPE Study/20211120 All about EMA and EMI.md#^9f1738]]