{"items":[{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-28 21:44:15.991Z","domain":"social.edu.nl","followerCount":86,"followers":"https://social.edu.nl/users/NicoleUmmelen/followers","following":"https://social.edu.nl/users/NicoleUmmelen/following","followingCount":186,"icon":"https://objectstore.surf.nl/mastodon/accounts/avatars/111/114/130/692/921/556/original/5cdd11bcaaca8a53.jpeg","id":"5fa1o5muik0lf56","inbox":"https://social.edu.nl/users/NicoleUmmelen/inbox","iri":"https://social.edu.nl/users/NicoleUmmelen","isLocal":false,"last_fetched":"2025-08-31 19:19:13.027Z","outbox":"https://social.edu.nl/users/NicoleUmmelen/outbox","preferred_username":"NicoleUmmelen","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAwHNPgFCUZsLILgqnI5eY\n50Jtbjii7ypee3sW8NfxreK+e0wV8KV9gOfc1OWtyogXfPvw+oau4OM1u2E9jaP8\nm/5ZXPqhEsFcUOUOs+aJL45FDHCWVETm2P0gbflqwBuavNUWW2nMAMh4f2dLYbPy\nb7IJefnfpfFna3s+qlffoJkLxEFakU2+WtI/6dtcqU/5L+P36tww/eoEJaD1uLXc\nxfkavGvtQCQ/vyfDUBce0yHAUxqx5uK2CvFFDw+ycL/9y3pqEF7XX6D1ErkNsjBS\niq4hT++vFTY9SnVqVOJGyaaGGLHh83cUbvGTBSOIWbutshr4HJonhG4eOVQ/wwhD\nJQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2023-09-23 00:00:00.000Z","summary":"

Bestuursvoorzitter #OpenUniversiteit / Open University The Netherlands

","updated":"2025-08-31 19:19:13.027Z","user":"","username":"Nicole Ummelen"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-31 19:19:13.605Z","domain":"mastodon.nl","followerCount":0,"followers":"https://mastodon.nl/users/ThomasGultzow/followers","following":"https://mastodon.nl/users/ThomasGultzow/following","followingCount":0,"icon":"https://mastodon.nl/system/accounts/avatars/109/270/311/999/598/816/original/17fd6be1dbee45f9.jpg","id":"uxbwh3922671d1j","inbox":"https://mastodon.nl/users/ThomasGultzow/inbox","iri":"https://mastodon.nl/users/ThomasGultzow","isLocal":false,"last_fetched":"2025-08-31 19:19:13.604Z","outbox":"https://mastodon.nl/users/ThomasGultzow/outbox","preferred_username":"ThomasGultzow","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAuQ4sdL47CWzRMv8maRPk\nuAx2jmyJ6JLfQWCYn4JFjIsyhBvw344FRZb+/5KSzXo8rV/9Zt8D8AagdwaRhksL\nwdegMu3H+De6LCkVmRAz2ZVJ7KCprhVwf/5iPafXD0MMSp0eqN4bZAhFi3Om5Gt1\nWJgUsEk/ntKgD3yz3JAjQJNscbYa5EtVjUVRqzB6LTnozyyE3x5GA/gG2+0uzyj6\n9sUXIoRoiDk9lUDeJRv4e9TnK82swyZgFKtc8ReUwMoS6qg6jZlcCndaDea5RRJS\ngCj85v4UhMwu5tVc9dNZn/M/GVcO+r3QvtwB+wyB9zgaYaTCUJS6u2TgzVe+xCeP\nwQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-01 00:00:00.000Z","summary":"

🎓 PhD
👨🏻‍💻 Pednurse ➡️ Assistant Professor
👨🏻‍🎓 Societal Transition & Behaviour Change
💼 Open University of the Netherlands
✨ Informed decision making nerd
🐶 Takkie 

🇩🇪🇳🇱🇬🇧🏳️‍🌈

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German PhD Researcher @ Ghent Health Psychology Lab ( #ugent ) -- Health promotion - Physical activity - eHealth/ mHealth

intersectional feminist

","updated":"2025-08-31 19:19:14.327Z","user":"","username":"Maya Braun"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-08 00:08:29.076Z","domain":"mastodon.social","followerCount":1745,"followers":"https://mastodon.social/users/IngridPrins/followers","following":"https://mastodon.social/users/IngridPrins/following","followingCount":4825,"icon":"https://files.mastodon.social/accounts/avatars/108/266/458/925/648/585/original/2cf8020ac170e564.jpg","id":"erq982awp31d9o4","inbox":"https://mastodon.social/users/IngridPrins/inbox","iri":"https://mastodon.social/users/IngridPrins","isLocal":false,"last_fetched":"2025-08-31 19:19:15.006Z","outbox":"https://mastodon.social/users/IngridPrins/outbox","preferred_username":"IngridPrins","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAmKSER5CktNxpXghq64cG\nLUrNyAqnY2ih/+Tistxqn2hIyqgfJbnpYrh+XdWphH9fbp7603/8uKqUK9WbKasK\nZudpFhWzOCSdSWK9hi/yUJLrWWJ6wuMisnJp+Iwk1GC/vIPp1MAzNpipsqw6SI9d\nYgfkg2U0UDZGutb2PiTFqS4IBvMICb2JL6eYV9iVAghd4QtcsTPM1nRKrzn9T+Nw\nWUvxyt34O7op/dN6gu6IW0izQFvzhHegwVYsRY2ZJZdZtKknx2rNMT92mKzosCWj\nzA4svle89UEI17sphMc/BF+POs5J7x5lb0buPULsxBgrcYngNA00zYIQCqt9upCY\nJQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-05-08 00:00:00.000Z","summary":"

Niet die van Henk. Auteur van Merel en ik (uitgeverij De Eenhoorn) en Ik wil geen konijn (uitgeverij Clavis). 0252, 071.

","updated":"2025-08-31 19:19:15.007Z","user":"","username":"Ingrid Prins"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-31 19:19:15.287Z","domain":"mastodon.online","followerCount":0,"followers":"https://mastodon.online/users/royawillems/followers","following":"https://mastodon.online/users/royawillems/following","followingCount":0,"icon":"https://files.mastodon.online/accounts/avatars/109/270/701/983/252/534/original/1849ceec71d07d92.png","id":"0200bwks429wh12","inbox":"https://mastodon.online/users/royawillems/inbox","iri":"https://mastodon.online/users/royawillems","isLocal":false,"last_fetched":"2025-08-31 19:19:15.287Z","outbox":"https://mastodon.online/users/royawillems/outbox","preferred_username":"royawillems","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA0hPFJ7mmLjiYjmxeYLma\n7wiltGXtUOLvcJpSO7wsFl+Ln3NTJ9fdXrrl4VL7rGBQrAX1Lp4jut1/yzPXWQiN\nckGLurboX3DmCGQ3Y/m0uB7w2grmB9d/uKc5Afi5tTfnZUzGrO7HqCHyGlDV2raX\nbT57uGi/WROGmcPSG0yeZAYDzwcAow5GMa5lxMHfb603HtIrk6OrnxZHzrgjA66x\nbHQ7yu7ceBxAtLwXCSGP+Q01hh7S53WTAVR+RaECVXh2J7wUp6A8B1AbroTh/Tx5\nV9bM+VF7EPbNRLqn/ez5YjScbfAY9kLFE5n6JeED/PMDL09z+T9Ar4Mgr8jPzTQv\n8QIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-01 00:00:00.000Z","summary":"

","updated":"2025-08-31 19:19:15.287Z","user":"","username":"Roy Willems"},{"collectionId":"pbc_1295301207","collectionName":"activitypub_actors","created":"2025-08-18 07:01:12.925Z","domain":"mastodon.nl","followerCount":1198,"followers":"https://mastodon.nl/users/matherion/followers","following":"https://mastodon.nl/users/matherion/following","followingCount":1334,"icon":"https://mastodon.nl/system/accounts/avatars/109/270/392/616/604/597/original/9979ed04b220814b.jpg","id":"0yasx6pu65j67p7","inbox":"https://mastodon.nl/users/matherion/inbox","iri":"https://mastodon.nl/users/matherion","isLocal":false,"last_fetched":"2025-08-31 19:19:15.435Z","outbox":"https://mastodon.nl/users/matherion/outbox","preferred_username":"matherion","public_key":"-----BEGIN PUBLIC KEY-----\nMIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAvU7xnctm6yohCuT1Xy8P\n4xa3l4FfFPOKCijHhp5RI/gabC7mkXaBPsN2w/MROAmtuPcFTxTVAeHP2yVZ198j\nd/VfSUrQn7hGrHtlTINq4JWamypzPGLQ8BFfUPhPYAx1Vz6ElsnEJiT21c/PDxrO\ntFhJlwdBTb9zkCWw3GHf33lnR3ZXZQ7PsafbDG1nTmA6lixhq99eDs8PP6BCVZ4o\nQzvZUb6hgsn/o3v1eqRfWgoAdE17cGsKEi6xkXUZQu2AUxGocbIKZGlRj1tQiBg/\n6hdyR+hJw11EUHYJeY9cyuekwddfz0Jx7h05h1rjjZbiIQ+sggiZdVedlJeS5IaO\ndQIDAQAB\n-----END PUBLIC KEY-----\n","published":"2022-11-01 00:00:00.000Z","summary":"

Striving for validity, not validation 📏🧠

Associate professor of Theory, Methods & Statistics, Psychology, Open University of the Netherlands.

Started out in behavior change research & intervention development and shifted towards methodology, measurement and validity.

🧠#BehaviorChange & #Psychology
🔬#OpenScience
📈 #Methodology & #Statistics
🎙️ #QualitativeMethods
💻 #rstats, #r, @rstats
🗺 #InterventionMapping
🌃🎶 #Nightlife risk behavior
🍻💊 #Substance use

and

5🐈

they/him

","updated":"2025-08-31 19:19:15.435Z","user":"","username":"Gjalt-Jorn Peters"}],"page":1,"perPage":10,"totalItems":6,"totalPages":1}

Ilona Stamhuis

Followers